diff --git a/src/components/formula/Formula.ts b/src/components/formula/Formula.ts
index 8349c2c..c37f4fd 100644
--- a/src/components/formula/Formula.ts
+++ b/src/components/formula/Formula.ts
@@ -29,7 +29,7 @@ export class Formula extends ExcelComponent {
     this.formulaInput = this.$root.find('#formula-input');
 
     this.$onEventFromObserver('table:select-cell', (cell: Dom) => {
-      this.formulaInput.text = cell.data.value || '';
+      this.formulaInput.text = cell.dataValue || '';
     });
   }
 
diff --git a/src/components/table/FocusManager.ts b/src/components/table/FocusManager.ts
new file mode 100644
index 0000000..333b88f
--- /dev/null
+++ b/src/components/table/FocusManager.ts
@@ -0,0 +1,59 @@
+import { Table } from 'components/table/Table';
+import { $, Dom } from 'core/Dom';
+import { parse } from 'core/utils';
+
+export class FocusManager {
+  private rootTable: Table;
+  public $currentFocusedCell: Dom | null;
+
+  constructor(rootTable: Table) {
+    this.rootTable = rootTable;
+
+    this.initManager();
+  }
+
+  private initManager() {
+    this.$currentFocusedCell = null;
+  }
+
+  resetFocus() {
+    window.getSelection()?.removeAllRanges();
+    (document.activeElement as HTMLElement)?.blur();
+    this.$currentFocusedCell = null;
+  }
+
+  focusOnTable() {
+    this.rootTable.$root.focus();
+  }
+
+  focusCell($cell: Dom) {
+    try {
+      const r = new Range();
+      const innerText = $cell.$el.childNodes[$cell.$el.childNodes.length - 1];
+
+      if (innerText !== undefined) {
+        r.setEndAfter(innerText);
+        r.setStartBefore(innerText);
+        r.collapse(false);
+
+        const selection = window.getSelection();
+        selection?.removeAllRanges();
+        selection?.addRange(r);
+      } else {
+        $cell.focus();
+      }
+
+      this.$currentFocusedCell = $cell;
+    } catch (e) {
+      console.log('FocusManager: ', e.message);
+      this.rootTable.selectionManager.clearAllSelection();
+    }
+  }
+
+  onFocusOut(event: FocusEvent) {
+    const $target = $(event.target);
+    if (!this.$currentFocusedCell?.isEqual($target)) return;
+
+    this.rootTable.updateTextInCell(parse($target.dataValue), $target, true);
+  }
+}
diff --git a/src/components/table/SelectionManager.ts b/src/components/table/SelectionManager.ts
new file mode 100644
index 0000000..228d486
--- /dev/null
+++ b/src/components/table/SelectionManager.ts
@@ -0,0 +1,398 @@
+import { Table } from 'components/table/Table';
+import {
+  getCellIdFromParams,
+  getParamsFromCellId,
+  isCell2,
+  isSelectionKey,
+  startCellId,
+} from 'components/table/table.functions';
+import { $, Dom } from 'core/Dom';
+import { getCellById, getIdByCell } from 'core/utils';
+
+export class SelectionManager {
+  private rootTable: Table;
+  private $selection: Dom[];
+  public $currentSelectedCell: Dom | null;
+  private $firstSelectedCell: Dom | null;
+
+  private isMouseDowned: boolean;
+  private static selectedClassName = 'selected';
+
+  private static addSelectedCellClass($cell: Dom) {
+    if (!$cell || !$cell.isExist) return;
+    $cell.addClass('selected');
+  }
+
+  private static removeSelectedCellClass($cell: Dom) {
+    if (!$cell || !$cell.isExist) return;
+    $cell.removeClass('selected');
+  }
+
+  private addCurrentCellClass() {
+    if (!this.$firstSelectedCell?.isExist) this.$currentSelectedCell?.addClass('current');
+    else this.$firstSelectedCell?.addClass('current');
+  }
+
+  private removeCurrentCellClass() {
+    if (!this.$firstSelectedCell?.isExist) this.$currentSelectedCell?.removeClass('current');
+    else this.$firstSelectedCell?.removeClass('current');
+  }
+
+  public static selectionKeys = [
+    'ArrowDown',
+    'ArrowLeft',
+    'ArrowRight',
+    'ArrowUp',
+    'Enter',
+    'Tab',
+    'Delete',
+
+    'Control',
+    'Shift',
+  ];
+
+  constructor(rootTable: Table) {
+    this.rootTable = rootTable;
+
+    this.initManager();
+  }
+
+  private initManager() {
+    this.clearAllSelection();
+
+    this.isMouseDowned = false;
+  }
+
+  get selectedIds() {
+    return this.$selection.map($cell => getCellIdFromParams(getIdByCell($cell)));
+  }
+
+  addCellToSelection($target: Dom) {
+    this.$selection.push($target);
+    this.currentSelectedCell = $target;
+    this.selectHeader($target);
+
+    SelectionManager.addSelectedCellClass($target);
+  }
+
+  private set currentSelectedCell($cell: Dom | null) {
+    this.removeCurrentCellClass();
+    if ($cell) {
+      this.$currentSelectedCell = $cell;
+      this.addCurrentCellClass();
+    }
+  }
+
+  selectFromTo($from: Dom, $cell: Dom) {
+    this.clearAllSelection(false);
+
+    const startCellParams = getParamsFromCellId($from.data.id || startCellId);
+    const selectedCellParams = getParamsFromCellId($cell.data.id || startCellId);
+
+    const startCol = Math.min(startCellParams.col, selectedCellParams.col);
+    const endCol = Math.max(startCellParams.col, selectedCellParams.col);
+    const startRow = Math.min(startCellParams.row, selectedCellParams.row);
+    const endRow = Math.max(startCellParams.row, selectedCellParams.row);
+
+    for (let row = startRow; row <= endRow; row++) {
+      for (let col = startCol; col <= endCol; col++) {
+        const $target = $(`[data-id="${row}:${col}"]`);
+        this.addCellToSelection($target);
+      }
+    }
+
+    this.rootTable.focusManager.focusOnTable();
+  }
+
+  selectCell($cell: Dom) {
+    this.clearAllSelection();
+    this.rootTable.focusManager.focusOnTable();
+    this.$selection = [$cell];
+    this.currentSelectedCell = $cell;
+    this.$firstSelectedCell = $cell;
+    this.selectHeader($cell);
+
+    this.rootTable.emitSelectCallback($cell);
+
+    SelectionManager.addSelectedCellClass($cell);
+  }
+
+  selectCells($cells: Dom[]) {
+    this.clearAllSelection();
+    $cells.forEach($cell => this.addCellToSelection($cell));
+  }
+
+  addGroupToSelectionById(cellID: { col: number | string, row: number | string }) {
+    if (this.$selection.length === 1) {
+      this.$firstSelectedCell = this.$selection[0];
+    }
+
+    const { col, row } = cellID;
+    const $cell = $(`[data-id="${row}:${col}"]`);
+    const $lastCell = this.$selection[this.$selection.length - 1];
+
+    if (!$lastCell.isExist || !this.$firstSelectedCell?.isExist) {
+      this.selectCell($lastCell);
+      return;
+    }
+
+    this.selectFromTo(this.$firstSelectedCell, $cell);
+
+    this.$currentSelectedCell = $cell;
+  }
+
+  clearAllSelection(clearFirstSelectedCell = true) {
+    this.$selection?.forEach($cell => SelectionManager.removeSelectedCellClass($cell));
+    this.$selection = [];
+    this.currentSelectedCell = null;
+    if (clearFirstSelectedCell) this.$firstSelectedCell = null;
+    this.clearHeaderSelection();
+    this.rootTable.focusManager?.resetFocus();
+  }
+
+  selectHeadRowCol($target: Dom) {
+    const row = $target.closest('[data-header="row"]');
+    const col = $target.closest('[data-header="col"]');
+    const resizer = $target.closest('[data-resize]');
+
+    if (resizer?.isExist) return;
+
+    let $cells: Dom[] = [];
+    if (row?.isExist) {
+      const cells = row.closest('[data-row]')?.findAll('[data-type="cell"]');
+      if (!cells) return;
+
+      $cells = Array.from(cells).map(cell => $(cell as HTMLElement));
+    } else if (col?.isExist) {
+      const colNumber = col.data.col;
+      const columns = this.rootTable.$root.findAll(`[data-col="${colNumber}"]`);
+
+      $cells = Array.from(columns).filter(el => !col.isEqual(el as HTMLElement)).map(el => $(el as HTMLElement));
+    }
+
+    this.selectCells($cells);
+    this.currentSelectedCell = $cells[0];
+    this.$currentSelectedCell?.isExist && this.rootTable.emitSelectCallback(this.$currentSelectedCell);
+  }
+
+  selectHeader($cell: Dom) {
+    if (!$cell.isExist) return;
+
+    const { headerCol, headerRow } = this.findHeadOfCell($cell);
+
+    headerRow?.addClass(SelectionManager.selectedClassName);
+    headerCol?.addClass(SelectionManager.selectedClassName);
+  }
+
+  clearHeaderSelection() {
+    this.rootTable.$root.findAll('[data-header]').forEach(header => {
+      header.classList.remove(SelectionManager.selectedClassName);
+    });
+  }
+
+  getNeighbourCellBySide(side: 'left' | 'right' | 'down' | 'up', $cell = this.$currentSelectedCell): Dom | undefined {
+    if (!$cell?.isExist) {
+      console.error('Нет стартовой ячейки');
+      return;
+    }
+
+    let { row, col } = getIdByCell($cell);
+    if (row === undefined || col === undefined) return;
+
+    switch (side) {
+      case 'down':
+        row++;
+        break;
+
+      case 'up':
+        row--;
+        break;
+
+      case 'left':
+        col--;
+        break;
+
+      case 'right':
+        col++;
+        break;
+
+      default: break;
+    }
+
+    const $neighbourCell = getCellById({ col, row });
+    if (!$neighbourCell || !$neighbourCell.isExist) {
+      console.error('Не получилось найти ячейку');
+      return;
+    }
+
+    // FIXME
+    // eslint-disable-next-line consistent-return
+    return $neighbourCell;
+  }
+
+  // TODO remove
+  moveSelectionTo(side: 'left' | 'right' | 'down' | 'up') {
+    const $current = this.$currentSelectedCell || this.rootTable.focusManager.$currentFocusedCell || this.$currentSelectedCell?.[0];
+    if (!$current?.isExist) return;
+
+    const $movingCell = this.getNeighbourCellBySide(side, $current);
+    if (!$movingCell?.isExist || !$movingCell) {
+      console.error('Ошибка, не найдена ячейка для перемещения');
+      return;
+    }
+    this.selectCell($movingCell);
+  }
+
+  findHeadOfCell($cell: Dom): { headerRow: Dom | undefined, headerCol: Dom | undefined } {
+    const headerRow = $cell.closest('[data-row]')?.find("[data-header='row']");
+    const headerCol = this.rootTable.$root.find(`[data-col="${$cell.data.id?.split(':')[1]}"]`);
+
+    return { headerRow, headerCol };
+  }
+
+  onMouseDownHandler(event: MouseEvent) {
+    const target = $(event.target);
+    const header = target.closest('[data-header]');
+    const resizer = target.closest('[data-resize]');
+    event.preventDefault();
+
+    if (header?.isExist && !isCell2(target) && !resizer?.isExist) {
+      this.selectHeadRowCol(header);
+      return;
+    }
+    if (!isCell2(target)) return;
+    if (this.$currentSelectedCell && target.isEqual(this.$currentSelectedCell)) return;
+
+    this.isMouseDowned = true;
+
+    switch (true) {
+      case event.ctrlKey:
+        this.addCellToSelection(target);
+        break;
+
+      case event.shiftKey:
+        if (!this.$currentSelectedCell) this.selectCell(target);
+        else {
+          const id = getIdByCell(target);
+          if (!id) return;
+          const { row, col } = id;
+          if (row === undefined || col === undefined) return;
+
+          this.addGroupToSelectionById({ row, col });
+        }
+
+        break;
+
+      default: this.selectCell(target);
+    }
+  }
+
+  onKeyDownHandler(event: KeyboardEvent) {
+    if (!isSelectionKey(event.key) || this.rootTable.focusManager.$currentFocusedCell?.isExist) {
+      // TODO improve check
+      if (event.key.length === 1) {
+        this.$currentSelectedCell && this.rootTable.focusManager.focusCell(this.$currentSelectedCell);
+      }
+
+      return;
+    }
+
+    event.preventDefault();
+
+    let $cell: Dom | undefined;
+    let side: 'left' | 'right' | 'down' | 'up' = 'right';
+
+    switch (event.key) {
+      case 'Shift':
+      case 'Control':
+        return;
+
+      case 'ArrowDown':
+        side = 'down';
+        break;
+
+      case 'ArrowUp':
+        side = 'up';
+        break;
+
+      case 'ArrowLeft':
+        side = 'left';
+        break;
+
+      case 'ArrowRight':
+        side = 'right';
+        break;
+
+      case 'Enter':
+        side = event.shiftKey ? 'up' : 'down';
+        break;
+
+      case 'Tab':
+        side = event.shiftKey ? 'left' : 'right';
+        break;
+
+      case 'Delete': {
+        this.$selection.forEach($el => {
+          this.rootTable.updateTextInCell('', $el);
+        });
+        return;
+      }
+
+      default: break;
+    }
+
+    if (!side) return;
+
+    // $cell = this.getNeighbourCellBySide(side);
+    $cell = this.getNeighbourCellBySide(side, this.$currentSelectedCell || this.$firstSelectedCell);
+
+    if (event.ctrlKey && $cell?.isExist) {
+      this.addCellToSelection($cell);
+      return;
+    }
+
+    if (event.shiftKey && $cell?.isExist && event.key !== 'Enter' && event.key !== 'Tab') {
+      const id = getIdByCell($cell);
+      if (!id) return;
+
+      const { row, col } = id;
+      if (row === undefined || col === undefined) return;
+
+      this.addGroupToSelectionById({ row, col });
+      return;
+    }
+
+    $cell = this.getNeighbourCellBySide(side, this.$firstSelectedCell || this.$currentSelectedCell);
+    if (!$cell || !$cell.isExist) return;
+
+    this.selectCell($cell);
+  }
+
+  doubleClickHandler(event: MouseEvent) {
+    const target = $(event.target);
+    if (!isCell2(target)) return;
+
+    this.rootTable.focusManager.focusCell(target);
+    this.rootTable.updateTextInCell(target.dataValue, target, true);
+  }
+
+  onMouseOverHandler(event: MouseEvent) {
+    if (!this.isMouseDowned) return;
+    const $target = $((event as any).toElement);
+
+    if (this.$firstSelectedCell?.isExist && isCell2($target)) {
+      this.selectFromTo(this.$firstSelectedCell, $target);
+      this.$currentSelectedCell = $target;
+    }
+  }
+
+  onMouseUpHandler() {
+    this.isMouseDowned = false;
+  }
+
+  applyStyle(style: Partial<CSSStyleDeclaration>) {
+    this.$selection.forEach($cell => {
+      $cell.css(style);
+    });
+  }
+}
diff --git a/src/components/table/Table.ts b/src/components/table/Table.ts
index 0123ea9..c7417d6 100644
--- a/src/components/table/Table.ts
+++ b/src/components/table/Table.ts
@@ -1,38 +1,36 @@
 import { ContextSelectType } from 'components/ContextMenu/ContextMenu';
 import { BaseComponentOption } from 'components/excel/Excel';
+import { FocusManager } from 'components/table/FocusManager';
+import { SelectionManager } from 'components/table/SelectionManager';
 import { startCellId } from 'components/table/table.functions';
 import * as actions from 'redux/action-creators';
 import { $, Dom } from 'core/Dom';
 import { ExcelComponent } from 'core/ExcelComponent';
-import { TableSelection } from 'components/table/TableSelection';
 import {
   addCol,
-  addRow,
-  changeCurrentStyles,
-  changeCurrentText,
+  addRow, changeCurrentStyles, changeCurrentText,
   changeTableSize, removeColFromTable,
   removeRowFromTable,
 } from 'redux/action-creators';
 import { createTable } from 'components/table/table.template';
 import { TableSizeType } from 'redux/types';
-import { initialStyleState } from 'src/constants';
-import { getCellId, parse } from 'core/utils';
+import { parse } from 'core/utils';
 import { resizeHandler } from 'components/table/handlers/table.resize';
-import { selectHandler } from 'components/table/handlers/table.select.handler';
+import { initialStyleState } from 'src/constants';
 
 export class Table extends ExcelComponent {
   static className = 'excel__table';
 
-  private selection: TableSelection;
-  private isMouseDowned: boolean;
   private tableResizing: boolean;
   public tableSize: TableSizeType;
+  selectionManager: SelectionManager;
+  focusManager: FocusManager;
 
   constructor($root: Dom, options: BaseComponentOption) {
     super($root, {
       ...options,
       name: 'Table',
-      eventListeners: ['mousedown', 'keydown', 'input', 'mouseover', 'mouseup', 'contextmenu'],
+      eventListeners: ['mousedown', 'keydown', 'input', 'mouseover', 'mouseup', 'contextmenu', 'dblclick', 'focusout'],
     });
   }
 
@@ -41,10 +39,10 @@ export class Table extends ExcelComponent {
   }
 
   beforeRender() {
-    this.selection = new TableSelection(this);
     this.tableResizing = false;
-    this.isMouseDowned = false;
     this.tableSize = this.getTableSize();
+    this.selectionManager = new SelectionManager(this);
+    this.focusManager = new FocusManager(this);
   }
 
   afterRender() {
@@ -53,7 +51,7 @@ export class Table extends ExcelComponent {
     this.initTable();
 
     this.$onEventFromObserver('formula:input', this.updateTextInCell);
-    this.$onEventFromObserver('formula:enter-press', () => this.selection.$currentCell.focus());
+    // this.$onEventFromObserver('formula:enter-press', () => this.selection.$currentCell.focus());
     this.$onEventFromObserver('toolbar:applyStyle', this.updateCurrentStyles);
     this.$onEventFromObserver('toolbar:add-row', this.addNewRowHandler);
     this.$onEventFromObserver('toolbar:remove-row', this.removeRowHandler);
@@ -129,24 +127,24 @@ export class Table extends ExcelComponent {
   }
 
   initStartCellFocus() {
-    const $cell = this.$root.find(`[data-id="${startCellId}"]`);
-    this.selection.select($cell);
-
-    this.$emitEventToObserver('table:select-cell', $cell);
+    // const $cell = this.$root.find(`[data-id="${startCellId}"]`);
+    // this.selection.select($cell);
+    //
+    // this.$emitEventToObserver('table:select-cell', $cell);
   }
 
-  emitSelectCallback() {
-    this.$emitEventToObserver('table:select-cell', this.selection.$currentCell);
+  emitSelectCallback($cell: Dom) {
+    this.$emitEventToObserver('table:select-cell', $cell);
 
-    const styles = this.selection.$currentCell?.getStyles(Object.keys(initialStyleState));
+    const styles = $cell.getStyles(Object.keys(initialStyleState));
 
     this.dispatchToStore(changeCurrentStyles(styles));
-    this.dispatchToStore(changeCurrentText(this.selection.$currentCell.text));
+    this.dispatchToStore(changeCurrentText($cell.dataValue));
   }
 
   async resizeTable(event: MouseEvent) {
     try {
-      if (!$(event.target).closest('[data-resize]').isExist) return;
+      if (!$(event.target).closest('[data-resize]')?.isExist) return;
       this.tableResizing = true;
       const resizeData = await resizeHandler(this.$root, event);
       this.dispatchToStore(actions.tableResize(resizeData));
@@ -157,23 +155,27 @@ export class Table extends ExcelComponent {
   }
 
   updateCurrentStyles = (style: Partial<CSSStyleDeclaration>) => {
-    this.selection.applyStyle(style);
+    this.selectionManager.applyStyle(style);
     this.dispatchToStore(actions.applyStyle({
       value: style,
-      ids: this.selection.selectedIds,
+      ids: this.selectionManager.selectedIds,
     }));
   };
 
-  updateTextInCell = (text: string, $cell = this.selection.$focusedCell) => {
-    $cell.attr('data-value', text);
-    // eslint-disable-next-line no-param-reassign
-    $cell.text = parse(text);
+  updateTextInCell = (text: string, $cell?: Dom, changeVisibleText?: boolean) => {
+    if (!$cell || !$cell.isExist) return;
 
-    this.dispatchToStore(actions.changeText({
-      text,
-      id: $cell.data.id || startCellId,
-    }));
-    this.selection.focusToCell($cell);
+    if (!changeVisibleText) {
+      $cell.attr('data-value', text);
+
+      this.dispatchToStore(actions.changeText({
+        text: $cell.dataValue.toString(),
+        id: $cell.data.id || startCellId,
+      }));
+    } else {
+      // eslint-disable-next-line no-param-reassign
+      $cell.text = text || '';
+    }
   };
 
   addNewRowHandler = () => {
@@ -190,12 +192,12 @@ export class Table extends ExcelComponent {
   }
 
   removeRowHandler = () => {
-    const cell = this.selection.$focusedCell;
-    const cellId = getCellId(cell);
-    if (!cellId) return;
-
-    const { row } = cellId;
-    this.removeColRow('row', +row);
+    // const cell = this.selection.$focusedCell;
+    // const cellId = getCellId(cell);
+    // if (!cellId) return;
+    //
+    // const { row } = cellId;
+    // this.removeColRow('row', +row);
   };
 
   removeColRow = (type: 'col' | 'row', index: number) => {
@@ -215,7 +217,6 @@ export class Table extends ExcelComponent {
         const idx = target.closest('[data-row]').data.row;
         if (!idx) return;
         this.addNewColRow('row', 'before', +idx);
-        // this.selection.selectByCellId({ col: 2, row: 2 });
         break;
       }
 
@@ -261,33 +262,43 @@ export class Table extends ExcelComponent {
   };
 
   onMousedown(event: MouseEvent) {
-    this.isMouseDowned = true;
-    selectHandler(event, this.selection, this.emitSelectCallback.bind(this));
     this.resizeTable(event);
+    this.selectionManager.onMouseDownHandler(event);
   }
 
   onKeydown(event: KeyboardEvent) {
-    selectHandler(event, this.selection, this.emitSelectCallback.bind(this));
+    this.selectionManager.onKeyDownHandler(event);
   }
 
   onInput(event: InputEvent) {
-    this.updateTextInCell((event.target as HTMLElement).innerText);
+    const $target = $(event.target);
+    if (!this.focusManager.$currentFocusedCell) return;
+
+    this.updateTextInCell($target.text, this.focusManager.$currentFocusedCell);
   }
 
   onMouseover(event: MouseEvent) {
-    this.isMouseDowned && !this.tableResizing && selectHandler(event, this.selection);
+    this.selectionManager.onMouseOverHandler(event);
   }
 
   onMouseup() {
-    this.isMouseDowned = false;
+    this.selectionManager.onMouseUpHandler();
   }
 
   onContextmenu(event: MouseEvent) {
     const $target = $(event.target);
 
-    this.selection.clearSelection();
-    this.selection.selectHeadRowCol($target);
+    this.selectionManager.clearAllSelection();
+    this.selectionManager.selectHeadRowCol($target);
 
     this.$emitEventToObserver('table:contextmenu', event);
   }
+
+  onDblclick(event: MouseEvent) {
+    this.selectionManager.doubleClickHandler(event);
+  }
+
+  onFocusout(event: FocusEvent) {
+    this.focusManager.onFocusOut(event);
+  }
 }
diff --git a/src/components/table/TableSelection.ts b/src/components/table/TableSelection.ts
deleted file mode 100644
index 1e1bc98..0000000
--- a/src/components/table/TableSelection.ts
+++ /dev/null
@@ -1,165 +0,0 @@
-import { Table } from 'components/table/Table';
-import { $, Dom } from 'core/Dom';
-import { getParamsFromCellId, startCellId } from 'components/table/table.functions';
-import { initialStyleState } from 'src/constants';
-
-export class TableSelection {
-  static selectedClassName = 'selected';
-  public selectedCellsGroup: Dom[];
-  // TODO remove focus, when selection
-  // $focusedCell and $currentCell can be different, f.e. if select cells with Shift key, currentCell
-  // will be last cell, focusedCell will start cell, and can be different from selectedCellsGroup first item
-  public $currentCell: Dom;
-  public $focusedCell: Dom;
-  public rootTable: Table;
-
-  constructor(rootTable: Table) {
-    this.selectedCellsGroup = [];
-    this.rootTable = rootTable;
-  }
-
-  get selectedIds() {
-    return this.selectedCellsGroup.map(el => el.data.id);
-  }
-
-  // TODO make a focus manager
-  focusToCell($cell: Dom) {
-    try {
-      this.$focusedCell = $cell;
-
-      const range = new Range();
-      const node = $cell.$el;
-
-      range.setStartAfter(node.childNodes[node.childNodes.length - 1]);
-
-      window.getSelection()?.removeAllRanges();
-      window.getSelection()?.addRange(range);
-    } catch (e) {
-      $cell.$el.focus();
-    }
-  }
-
-  select($cell: Dom) {
-    this.clearSelection();
-    this.selectedCellsGroup = [$cell];
-    this.$currentCell = $cell;
-    this.$focusedCell = $cell;
-    $cell.addClass(TableSelection.selectedClassName);
-    this.focusToCell($cell);
-    this.selectHeader($cell);
-  }
-
-  selectByCellId(cellID: { col: number, row: number }) {
-    let { col, row } = cellID;
-
-    if (col <= 0) col = 0;
-    if (row <= 0) row = 0;
-
-    this.select($(`[data-id="${row}:${col}"]`));
-  }
-
-  clearSelection() {
-    this.selectedCellsGroup.forEach(el => el?.removeClass(TableSelection.selectedClassName));
-    this.$currentCell?.removeClass(TableSelection.selectedClassName);
-    this.clearHeaderSelection();
-    this.selectedCellsGroup = [];
-    this.rootTable.updateCurrentStyles(initialStyleState);
-  }
-
-  selectFromTo($from: Dom, $cell: Dom) {
-    const startCellParams = getParamsFromCellId($from.data.id || startCellId);
-    const selectedCellParams = getParamsFromCellId($cell.data.id || startCellId);
-
-    const startCol = Math.min(startCellParams.col, selectedCellParams.col);
-    const endCol = Math.max(startCellParams.col, selectedCellParams.col);
-    const startRow = Math.min(startCellParams.row, selectedCellParams.row);
-    const endRow = Math.max(startCellParams.row, selectedCellParams.row);
-
-    this.clearSelection();
-
-    for (let row = startRow; row <= endRow; row++) {
-      for (let col = startCol; col <= endCol; col++) {
-        const $target = $(`[data-id="${row}:${col}"]`);
-        this.addCellToSelection($target);
-      }
-    }
-  }
-
-  selectGroupies($cells: Dom[]) {
-    this.clearSelection();
-    $cells.forEach($cell => this.addCellToSelection($cell));
-  }
-
-  addCellToSelection($cell: Dom) {
-    this.selectedCellsGroup.push($cell);
-    $cell.addClass(TableSelection.selectedClassName);
-    this.selectHeader($cell);
-  }
-
-  addGroupToSelectionById(cellID: { col: number, row: number }) {
-    if (this.selectedCellsGroup.length === 1) {
-      this.$focusedCell = this.selectedCellsGroup[0];
-    }
-    const { col, row } = cellID;
-    const $cell = $(`[data-id="${row}:${col}"]`);
-    const $lastCell = this.selectedCellsGroup[this.selectedCellsGroup.length - 1];
-
-    if (!$lastCell.isExist) {
-      this.select($lastCell);
-      return;
-    }
-
-    this.selectFromTo(this.$focusedCell, $cell);
-
-    this.$currentCell = $cell;
-  }
-
-  applyStyle(style: Partial<CSSStyleDeclaration>) {
-    this.selectedCellsGroup.forEach(el => el.css(style));
-  }
-
-  selectHeader($cell: Dom) {
-    if (!$cell) return;
-
-    const { headerCol, headerRow } = this.findHeadOfCell($cell);
-
-    headerRow.addClass(TableSelection.selectedClassName);
-    headerCol.addClass(TableSelection.selectedClassName);
-  }
-
-  clearHeaderSelection() {
-    this.rootTable.$root.findAll('[data-header]').forEach(header => {
-      header.classList.remove(TableSelection.selectedClassName);
-    });
-  }
-
-  findHeadOfCell($cell: Dom): { headerRow: Dom, headerCol: Dom } {
-    const headerRow = $cell.closest('[data-row]').find("[data-header='row']");
-    const headerCol = this.rootTable.$root.find(`[data-col="${$cell.data.id?.split(':')[1]}"]`);
-
-    return { headerRow, headerCol };
-  }
-
-  isCellInSelection($cell: Dom) {
-    return this.selectedCellsGroup.includes($cell);
-  }
-
-  selectHeadRowCol($target: Dom) {
-    const row = $target.closest('[data-header="row"]');
-    const col = $target.closest('[data-header="col"]');
-    const resizer = $target.closest('[data-resize]');
-
-    if (row.$el && !resizer.$el) {
-      const cells = row.closest('[data-row]').findAll('[data-type="cell"]');
-      const $cells = Array.from(cells).map(cell => $(cell as HTMLElement));
-
-      this.selectGroupies($cells);
-    } else if (col.$el && !resizer.$el) {
-      const colNumber = col.data.col;
-      const columns = this.rootTable.$root.findAll(`[data-col="${colNumber}"]`);
-      const $cells = Array.from(columns).filter(el => el !== col.$el).map(el => $(el as HTMLElement));
-
-      this.selectGroupies($cells);
-    }
-  }
-}
diff --git a/src/components/table/handlers/table.select.handler.ts b/src/components/table/handlers/table.select.handler.ts
deleted file mode 100644
index 2777afd..0000000
--- a/src/components/table/handlers/table.select.handler.ts
+++ /dev/null
@@ -1,125 +0,0 @@
-import { $ } from 'core/Dom';
-import { TableSelection } from 'components/table/TableSelection';
-import { getParamsFromCellId, isCell, startCellId } from 'components/table/table.functions';
-
-export function selectHandler(event: MouseEvent | KeyboardEvent, selection: TableSelection, callback?: () => void) {
-  switch (event.type) {
-    case 'mousedown': {
-      onMouseDownHandler();
-      break;
-    }
-
-    case 'keydown': {
-      onKeyDownHandler();
-      break;
-    }
-
-    case 'mouseover': {
-      onMouseOverHandler();
-      break;
-    }
-
-    default: break;
-  }
-
-  // Analog callback && callback();
-  callback?.();
-
-  function onMouseDownHandler() {
-    const target = $(event.target);
-
-    if (isCell(event)) {
-      if (event.shiftKey) selection.selectFromTo(selection.$currentCell, target);
-      else if (event.ctrlKey) selection.addCellToSelection(target);
-      else selection.select(target);
-    } else {
-      selection.selectHeadRowCol(target);
-    }
-  }
-
-  function onKeyDownHandler() {
-    const { key } = event as KeyboardEvent;
-    const handleKeys = [
-      'ArrowDown',
-      'ArrowUp',
-      'ArrowRight',
-      'ArrowLeft',
-      'Enter',
-      'Tab',
-      'Delete',
-    ];
-
-    if (!selection?.$currentCell || !handleKeys.includes(key)) return;
-
-    // If something goes wrong, go to start line
-    const currentCellId = selection.$currentCell.data.id || startCellId;
-    let { row, col } = getParamsFromCellId(currentCellId);
-
-    switch (key) {
-      case 'ArrowDown': {
-        if (selection.rootTable.tableSize.row === row + 1) return;
-        row++;
-        break;
-      }
-      case 'ArrowUp': {
-        row--;
-        break;
-      }
-      case 'ArrowRight': {
-        if (selection.rootTable.tableSize.col === col + 1) return;
-        col++;
-        break;
-      }
-      case 'ArrowLeft': {
-        col--;
-        break;
-      }
-      case 'Enter': {
-        event.preventDefault();
-
-        if (event.shiftKey) row--;
-        else row++;
-        if (row === selection.rootTable.tableSize.row) selection.rootTable.addNewRowHandler();
-        break;
-      }
-      case 'Tab': {
-        event.preventDefault();
-
-        // Tab in selection must save focus in inner selection cells
-        if (selection.selectedCellsGroup.length > 1) {
-          const idxInSelection = selection.selectedCellsGroup.findIndex(el => el.$el === selection.$focusedCell.$el);
-          const nextIdx = idxInSelection + 1 === selection.selectedCellsGroup.length ? 0 : idxInSelection + 1;
-
-          selection.focusToCell(selection.selectedCellsGroup[nextIdx]);
-
-          break;
-        }
-
-        if (event.shiftKey) col--;
-        else col++;
-
-        break;
-      }
-      case 'Delete': {
-        if (selection.selectedCellsGroup.length > 1) {
-          event.preventDefault();
-
-          selection.selectedCellsGroup.forEach($cell => selection.rootTable.updateTextInCell('', $cell));
-        }
-
-        break;
-      }
-      default: break;
-    }
-
-    if (event.shiftKey && key !== 'Tab' && key !== 'Enter') selection.addGroupToSelectionById({ row, col });
-    else selection.selectByCellId({ row, col });
-  }
-
-  function onMouseOverHandler() {
-    if (selection.$currentCell.$el) {
-      // TODO find event type
-      selection.selectFromTo(selection.$currentCell, $((event as any).toElement));
-    }
-  }
-}
diff --git a/src/components/table/table.functions.ts b/src/components/table/table.functions.ts
index e9824be..f7eef61 100644
--- a/src/components/table/table.functions.ts
+++ b/src/components/table/table.functions.ts
@@ -1,9 +1,18 @@
-import { $ } from 'core/Dom';
+import { SelectionManager } from 'components/table/SelectionManager';
+import { $, Dom } from 'core/Dom';
 
 export function isCell(event: Event): boolean {
   return $(event.target).data.type === 'cell';
 }
 
+export function isCell2($cell: Dom): boolean {
+  return $cell.data.type === 'cell';
+}
+
+export function isSelectionKey(key: string): boolean {
+  return SelectionManager.selectionKeys.includes(key);
+}
+
 export function getParamsFromCellId(cellId: string) {
   const row = +cellId.split(':')[0];
   const col = +cellId.split(':')[1];
@@ -11,4 +20,8 @@ export function getParamsFromCellId(cellId: string) {
   return { col, row };
 }
 
+export function getCellIdFromParams(params: { row?: string, col?: string }) {
+  return `${params.row}:${params.col}`;
+}
+
 export const startCellId = '0:0';
diff --git a/src/core/ComponentManager.ts b/src/core/ComponentManager.ts
index 8e07419..898f82b 100644
--- a/src/core/ComponentManager.ts
+++ b/src/core/ComponentManager.ts
@@ -20,6 +20,7 @@ export class ComponentManager {
 
   createComponent(Component: ComponentType, componentOptions: BaseComponentOption) {
     const $el = $.create('div', Component.className);
+    $el.attr('tabindex', '-1');
     const componentInstance: ExcelComponent = new Component($el, componentOptions);
 
     $el.html(componentInstance.toHTML());
diff --git a/src/core/Dom.ts b/src/core/Dom.ts
index dcb370b..3912686 100644
--- a/src/core/Dom.ts
+++ b/src/core/Dom.ts
@@ -38,7 +38,7 @@ export class Dom implements DomClass {
 
   get text() {
     if (this.$el.closest('input')) return (this.$el as HTMLInputElement).value;
-    return (this.$el as HTMLElement).innerText;
+    return (this.$el as HTMLElement).innerText || '';
   }
 
   clear() {
@@ -70,10 +70,18 @@ export class Dom implements DomClass {
     this.$el.focus();
   }
 
+  blur() {
+    this.$el.blur();
+  }
+
   get data() {
     return this.$el.dataset || '';
   }
 
+  get dataValue(): string {
+    return this.$el.dataset.value || '';
+  }
+
   setData(name: string, value: string) {
     this.$el.setAttribute(`data-${name}`, value);
   }
@@ -124,7 +132,7 @@ export class Dom implements DomClass {
     }, {});
   }
 
-  attr(name: string, value: string) {
+  attr(name: string, value?: string) {
     if (value !== undefined) {
       this.$el.setAttribute(name, value);
       return this;
@@ -144,6 +152,12 @@ export class Dom implements DomClass {
   get isExist(): boolean {
     return !!this.$el;
   }
+
+  isEqual($target: Dom | HTMLElement): boolean {
+    if ($target instanceof Dom) return this.$el === $target.$el;
+
+    return this.$el === $target;
+  }
 }
 
 export function $(selector: SelectorType) {
diff --git a/src/core/utils.ts b/src/core/utils.ts
index e9d73d7..ecc6f94 100644
--- a/src/core/utils.ts
+++ b/src/core/utils.ts
@@ -1,4 +1,4 @@
-import { Dom } from 'core/Dom';
+import { $, Dom } from 'core/Dom';
 import { CallbackType, StateType } from 'redux/types';
 import { fontSizes } from 'src/constants';
 
@@ -42,7 +42,7 @@ export function debounce(fn: CallbackType, wait: number) {
 }
 
 export function parse(value: string) {
-  if (value.startsWith('=')) {
+  if (value.toString().startsWith('=')) {
     try {
       // eslint-disable-next-line no-eval
       return eval(value.slice(1));
@@ -68,12 +68,15 @@ export function getMethodNameByEventName(eventName: string): string {
   return `on${capitalize(eventName)}`;
 }
 
-export function getCellId($cell: Dom): { row: string, col: string } | false {
-  if (!$cell.isExist) return false;
+export function getIdByCell($cell: Dom): { row?: string, col?: string } {
   const id = $cell.data.id?.split(':');
-  if (!Array.isArray(id)) return false;
-  const [row, col] = id;
-  return { row, col };
+  return { row: id?.[0], col: id?.[1] };
+}
+
+export function getCellById(id: { row: string | number, col: string | number }): Dom | false {
+  const $cell = $(`[data-id="${id.row}:${id.col}"]`);
+  if (!$cell.isExist) return false;
+  return $cell;
 }
 
 export function storageName(param: string) {
diff --git a/src/styles/components/table.scss b/src/styles/components/table.scss
index d8c8b35..15869db 100644
--- a/src/styles/components/table.scss
+++ b/src/styles/components/table.scss
@@ -60,8 +60,12 @@
     &.selected {
       border: none;
       outline: 2px solid $primary-color;
+      background: #cccccc;
       z-index: 2;
     }
+    &.current {
+      background: #ffffff;
+    }
   }
   .col-resize{
     position: absolute;
@@ -71,7 +75,7 @@
     width: 4px;
     background: $primary-color;
     opacity: 0;
-    z-index: 2;
+    z-index: 50;
 
     &:hover{
       cursor: col-resize;
@@ -86,7 +90,7 @@
     height: 4px;
     opacity: 0;
     background: $primary-color;
-    z-index: 2;
+    z-index: 50;
 
     &:hover{
       cursor: row-resize;