Update all ExcelJS links to DevExtreme fork (#30470)

Author: arman-boyakhchyan

apps/demos/Demos/DataGrid/ExcelJSCellCustomization/description.md

@@ -2,11 +2,11 @@ The [customizeCell](/Documentation/ApiReference/Common/Object_Structures/ExportD
 
 You can access and change the following attributes:
 
-- <a href="https://github.com/exceljs/exceljs#fonts" target="_blank">Font</a> properties    
-- <a href="https://github.com/exceljs/exceljs#fills" target="_blank">Cell background</a>     
-- <a href="https://github.com/exceljs/exceljs#hyperlink-value" target="_blank">Cell values</a>       
-- Text <a href="https://github.com/exceljs/exceljs#alignment" target="_blank">alignment</a>        
-- <a href="https://github.com/exceljs/exceljs#number-formats" target="_blank">Formatting</a> properties    
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#fonts" target="_blank">Font</a> properties    
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#fills" target="_blank">Cell background</a>     
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#hyperlink-value" target="_blank">Cell values</a>       
+- Text <a href="https://github.com/DevExpress/devextreme-exceljs-fork#alignment" target="_blank">alignment</a>        
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#number-formats" target="_blank">Formatting</a> properties    
 
 The [customizeCell](/Documentation/ApiReference/Common/Object_Structures/ExportDataGridProps/#customizeCell) function also allows you to identify row types. For example, this demo changes the background color and font weight for cells with the "group" [rowType](/Documentation/ApiReference/UI_Components/dxDataGrid/Row/#rowType).
 <!--split-->

apps/demos/Demos/DataGrid/ExcelJSExportImages/description.md

@@ -1,4 +1,4 @@
-This demo shows how you can use <a href="https://github.com/exceljs/exceljs" target="_blank">ExcelJS</a> API to export images to Excel [worksheets](https://github.com/exceljs/exceljs#add-a-worksheet).
+This demo shows how you can use <a href="https://github.com/DevExpress/devextreme-exceljs-fork" target="_blank">DevExtreme ExcelJS</a> API to export images to Excel [worksheets](https://github.com/DevExpress/devextreme-exceljs-fork#add-a-worksheet).
 
-See the [customizeCell](/Documentation/ApiReference/Common/Object_Structures/ExportDataGridProps/#customizeCell) callback for implementation details. The **workbook**.<a href="https://github.com/exceljs/exceljs#add-image-to-workbook" target="_blank">addImage()</a> method specifies image data and encoding. **tl** and **br** parameters are used to specify image location and span.
+See the [customizeCell](/Documentation/ApiReference/Common/Object_Structures/ExportDataGridProps/#customizeCell) callback for implementation details. The **workbook**.<a href="https://github.com/DevExpress/devextreme-exceljs-fork#add-image-to-workbook" target="_blank">addImage()</a> method specifies image data and encoding. **tl** and **br** parameters are used to specify image location and span.
 <!--split-->

apps/demos/Demos/DataGrid/ExcelJSExportMultipleGrids/description.md

@@ -1,6 +1,6 @@
 The [exportDataGrid()](/Documentation/ApiReference/Common/Utils/excelExporter/#exportDataGridoptions) method allows users to export multiple grids to one Excel document. Grids are exported consequently in a <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/then" target="_blank">chain of Promises</a>. 
 
-In this demo, this functionality is used to export two DataGrids into separate <a href="https://github.com/exceljs/exceljs#add-a-worksheet" target="_blank">worksheets</a> in the same <a href="https://github.com/exceljs/exceljs#create-a-workbook" target="_blank">workbook</a>. Starting position of each exported grid is set using the [topLeftCell](/Documentation/ApiReference/Common/Object_Structures/ExportDataGridProps/topLeftCell/) property.
+In this demo, this functionality is used to export two DataGrids into separate <a href="https://github.com/DevExpress/devextreme-exceljs-fork#add-a-worksheet" target="_blank">worksheets</a> in the same <a href="https://github.com/DevExpress/devextreme-exceljs-fork#create-a-workbook" target="_blank">workbook</a>. Starting position of each exported grid is set using the [topLeftCell](/Documentation/ApiReference/Common/Object_Structures/ExportDataGridProps/topLeftCell/) property.
 
 Use the [customizeCell](/Documentation/ApiReference/Common/Object_Structures/ExportDataGridProps/#customizeCell) method to customize the exported worksheets.
 <!--split-->

apps/demos/Demos/DataGrid/ExcelJSHeaderAndFooter/description.md

@@ -1,9 +1,9 @@
-<a href="https://github.com/exceljs/exceljs" target="_blank">ExcelJS</a> library allows you to customize worksheets outside the exported cell area. This demo uses this functionality to add a header (a title before exported data) and a footer (a note after exported data).
+<a href="https://github.com/DevExpress/devextreme-exceljs-fork" target="_blank">DevExtreme ExcelJS</a> library allows you to customize worksheets outside the exported cell area. This demo uses this functionality to add a header (a title before exported data) and a footer (a note after exported data).
 
 Review the [onExporting](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/#onExporting) handler to see the data export code. The functions that create header and footer sections utilize the following customization features:
 
-- <a href="https://github.com/exceljs/exceljs#merged-cells" target="_blank">Merged cells</a>
-- <a href="https://github.com/exceljs/exceljs#value-types" target="_blank">Cell values</a> formatting
-- <a href="https://github.com/exceljs/exceljs#fonts" target="_blank">Font properties</a>
-- Text <a href="https://github.com/exceljs/exceljs#alignment" target="_blank">alignment</a>
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#merged-cells" target="_blank">Merged cells</a>
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#value-types" target="_blank">Cell values</a> formatting
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#fonts" target="_blank">Font properties</a>
+- Text <a href="https://github.com/DevExpress/devextreme-exceljs-fork#alignment" target="_blank">alignment</a>
 <!--split-->

apps/demos/Demos/DataGrid/ExcelJSOverview/description.md

@@ -1,8 +1,8 @@
-To enable export in the DataGrid, reference or import the <a href="https://github.com/exceljs/exceljs" target="_blank">ExcelJS</a> and <a href="https://github.com/eligrey/FileSaver.js/" target="_blank">FileSaver</a> libraries. Set **export**.[enabled](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/export/#enabled) to **true**. 
+To enable export in the DataGrid, reference or import the <a href="https://github.com/DevExpress/devextreme-exceljs-fork" target="_blank">DevExtreme ExcelJS</a> and <a href="https://github.com/eligrey/FileSaver.js/" target="_blank">FileSaver</a> libraries. Set **export**.[enabled](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/export/#enabled) to **true**. 
 
-Once the conditions above are met, use the [exportDataGrid(options)](/Documentation/ApiReference/Common/Utils/excelExporter/#exportDataGridoptions) method to export the DataGrid to an Excel <a href="https://github.com/exceljs/exceljs#create-a-workbook" target="_blank">workbook</a>. 
+Once the conditions above are met, use the [exportDataGrid(options)](/Documentation/ApiReference/Common/Utils/excelExporter/#exportDataGridoptions) method to export the DataGrid to an Excel <a href="https://github.com/DevExpress/devextreme-exceljs-fork#create-a-workbook" target="_blank">workbook</a>. 
 
-Review the [onExporting](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/#onExporting) handler to see the data export code. DataGrid is exported as is to a single <a href="https://github.com/exceljs/exceljs#add-a-worksheet" target="_blank">worksheet</a>. You can also set [allowExportSelectedData](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/export/#allowExportSelectedData) to **true** to export only selected rows.
+Review the [onExporting](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/#onExporting) handler to see the data export code. DataGrid is exported as is to a single <a href="https://github.com/DevExpress/devextreme-exceljs-fork#add-a-worksheet" target="_blank">worksheet</a>. You can also set [allowExportSelectedData](/Documentation/ApiReference/UI_Components/dxDataGrid/Configuration/export/#allowExportSelectedData) to **true** to export only selected rows.
 
 You can export DataGrid to CSV. Call the **exportDataGrid(options)** method as shown in the following ticket: <a href="https://supportcenter.devexpress.com/ticket/details/t920593/pivotgrid-exceljs-export-to-export-pivotgrid-into-csv-file" target="_blank">Export PivotGrid into CSV file</a>.
 <!--split-->

apps/demos/Demos/PivotGrid/ExcelJSCellCustomization/description.md

@@ -2,11 +2,11 @@ Our PivotGrid allows you to control and manage the data export process. You can
 
 Our PivotGrid gives you access and allows you to change the following attributes:
 
-- <a href="https://github.com/exceljs/exceljs#fonts" target="_blank">Font</a> properties
-- <a href="https://github.com/exceljs/exceljs#fills" target="_blank">Cell background</a>
-- <a href="https://github.com/exceljs/exceljs#hyperlink-value" target="_blank">Cell values</a>
-- <a href="https://github.com/exceljs/exceljs#borders" target="_blank">Border</a> properties
-- <a href="https://github.com/exceljs/exceljs#number-formats" target="_blank">Formatting</a> properties
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#fonts" target="_blank">Font</a> properties
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#fills" target="_blank">Cell background</a>
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#hyperlink-value" target="_blank">Cell values</a>
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#borders" target="_blank">Border</a> properties
+- <a href="https://github.com/DevExpress/devextreme-exceljs-fork#number-formats" target="_blank">Formatting</a> properties
 
 The **customizeCell** function also allows you to identify cell area types.
 <!--split-->

apps/demos/Demos/PivotGrid/ExcelJSOverview/description.md

@@ -1,8 +1,8 @@
-Our PivotGrid allows you to easily and accurately export its contents to Microsoft Excel. To enable export operations, you must reference or import <a href="https://github.com/exceljs/exceljs" target="_blank">ExcelJS</a> and <a href="https://github.com/eligrey/FileSaver.js/" target="_blank">FileSaver</a> libraries. You must also set **export**.[enabled](/Documentation/ApiReference/UI_Components/dxPivotGrid/Configuration/export/#enabled) to **true**.
+Our PivotGrid allows you to easily and accurately export its contents to Microsoft Excel. To enable export operations, you must reference or import <a href="https://github.com/DevExpress/devextreme-exceljs-fork" target="_blank">DevExtreme ExcelJS</a> and <a href="https://github.com/eligrey/FileSaver.js/" target="_blank">FileSaver</a> libraries. You must also set **export**.[enabled](/Documentation/ApiReference/UI_Components/dxPivotGrid/Configuration/export/#enabled) to **true**.
 
-Once you've referenced/imported both files and set **export**.**enabled** to **true**, use the [exportPivotGrid(options)](/Documentation/ApiReference/Common/Utils/excelExporter/#exportPivotGridoptions) method to export PivotGrid content to an Excel <a href="https://github.com/exceljs/exceljs#create-a-workbook" target="_blank">workbook</a>.
+Once you've referenced/imported both files and set **export**.**enabled** to **true**, use the [exportPivotGrid(options)](/Documentation/ApiReference/Common/Utils/excelExporter/#exportPivotGridoptions) method to export PivotGrid content to an Excel <a href="https://github.com/DevExpress/devextreme-exceljs-fork#create-a-workbook" target="_blank">workbook</a>.
 
-Please review the [onExporting](/Documentation/ApiReference/UI_Components/dxPivotGrid/Configuration/#onExporting) handler and its data export code to learn more. In this example, PivotGrid content is exported as is to a single <a href="https://github.com/exceljs/exceljs#add-a-worksheet" target="_blank">worksheet</a>.
+Please review the [onExporting](/Documentation/ApiReference/UI_Components/dxPivotGrid/Configuration/#onExporting) handler and its data export code to learn more. In this example, PivotGrid content is exported as is to a single <a href="https://github.com/DevExpress/devextreme-exceljs-fork#add-a-worksheet" target="_blank">worksheet</a>.
 <!--split-->
 
 You can export PivotGrid to CSV. Call the **exportPivotGrid(options)** method as shown in the following ticket: <a href="https://supportcenter.devexpress.com/ticket/details/t920593/pivotgrid-exceljs-export-to-export-pivotgrid-into-csv-file" target="_blank">Export PivotGrid into CSV file</a>.

apps/demos/Demos/PivotGrid/ExcelJsHeaderAndFooter/description.md

@@ -1,4 +1,4 @@
-The PivotGrid allows you to customize a header and a footer in the exported Excel file. The <a href="https://github.com/exceljs/exceljs" target="_blank">ExcelJS</a> library allows you to customize worksheets outside of exported cell regions. This, in turns, allows you to add a header (a title before exported data) and a footer (a note after exported data).
+The PivotGrid allows you to customize a header and a footer in the exported Excel file. The <a href="https://github.com/DevExpress/devextreme-exceljs-fork" target="_blank">DevExtreme ExcelJS</a> library allows you to customize worksheets outside of exported cell regions. This, in turns, allows you to add a header (a title before exported data) and a footer (a note after exported data).
 <!--split-->
 
 Follow the steps below to configure a header/footer:
@@ -19,10 +19,10 @@ Follow the steps below to configure a header/footer:
 
 4. Execute a promise after the [exportPivotGrid(options)](/Documentation/ApiReference/Common/Utils/excelExporter/#exportPivotGridoptions) method. In this promise, specify the position, appearance, and content of the header/footer. The functions used to generate header and footer sections utilize the following PivotGrid customization features:
 
-    - <a href="https://github.com/exceljs/exceljs#merged-cells" target="_blank">Merged cells</a>
+    - <a href="https://github.com/DevExpress/devextreme-exceljs-fork#merged-cells" target="_blank">Merged cells</a>
 
-    - <a href="https://github.com/exceljs/exceljs#value-types" target="_blank">Cell values</a> formatting
+    - <a href="https://github.com/DevExpress/devextreme-exceljs-fork#value-types" target="_blank">Cell values</a> formatting
 
-    - <a href="https://github.com/exceljs/exceljs#fonts" target="_blank">Font properties</a>
+    - <a href="https://github.com/DevExpress/devextreme-exceljs-fork#fonts" target="_blank">Font properties</a>
 
-    - Text <a href="https://github.com/exceljs/exceljs#alignment" target="_blank">alignment</a>
+    - Text <a href="https://github.com/DevExpress/devextreme-exceljs-fork#alignment" target="_blank">alignment</a>