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#How to restore gridlines in excel 2003 software#

Note that Excel does not allow you to reuse an existing name in this way.

In the Properties window, enter the name in the Name field.

Click the Name box located at the left end of the formula bar.

Click and select the cell or drawing object.

For example, if the name oknID refers to the range A20:A30 on the first worksheet in a workbook, you can use the name oknID on any other sheet in the same workbook to refer to range A20:A30 on the first worksheet. Names defined this way by defalt are available to any sheet. To distinguish from other names, all names used by Invoice Manager for Excel are prefixed with okn ('s Name). And for DiskInternals Excel Recovery, the Excel cannot open the file because the extension is not valid in Excel 2013 this is easier than ever.All objects in an invoice workbook, including ActiveX controls, drawing objects and cells, are identified by names.

#How to restore gridlines in excel 2003 software#

Excel cannot open the file? Use DiskInternals Excel Recovery!ĭiskInternals Excel Recovery is a great solution for you, as this software is designed specifically for recovering Excel files. If for any reason this method did not suit you, do not worry, there is another proven method! Method 4.

Now click Open and Repair.Īs a result, you will no longer see the message of the workbook cannot be opened or repaired by microsoft excel because it is corrupted and you will be able to use the file again. This is a built-in easy-to-handle MS Excel utility that allows you to correct the error excel cannot open the file because the file format or file extension is not valid.Įnter the Excel application and on the Taskbar click File, select Open from the list, then click on your inaccessible file. Excel cannot open the file? “Open and Repair” feature will help you! You will be prompted to save it, create a new name, enable XLSX and click Save. Right click on the file you need and select restore. A list of files that have been automatically saved will appear. To do this, go to the application and on the Taskbar click on File, then select the Information with the left mouse button.

If you have enabled the autosave feature in advance, you can safely use this method to eliminate the error “Excel cannot open the file because the file format or file extension is not valid”. Use Excel previous version to open the file You need to directly change the file extension depending on the version of Excel installed.Ĭheck if the error “Excel cannot open the file” is resolved. Then select Options -> Export -> Change File Type. Open Excel and, on the taskbar, select File. Therefore, all you need is to modify the file format and it will become available. But Excel since 2007 saves files in the XLSX format.Ī mismatch between file extension and Excel version may cause the error “Excel cannot open the file because the file format or file extension is not valid”.

In all versions of Excel until 2007, documents were saved in the XLS format. If you still get an error message that Excel cannot open the file because the file format or file extension is not valid, there are some great methods to fix it! Method 1.Change the file extension! The document was edited several times in different versions of Excel.The document is damaged or incompatible with the current version of Excel.This may occur for the following reasons: While working with Excel, you may see the message: Excel cannot open the file because the file format or file extension is not valid.