While working on Microsoft Excel 2007, the user may face the situation when an error message is generated on trying to access any Excel file. The error does not allow to access those files which had been accessed last day without any problem. The problem is not only confined to Excel it has been also observed in PowerPoint, JPEG, and AutoCAD etc other files. The error reads like this:
‘Excel cannot open the file because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.’
There are several reasons which are accountable for occurrence of the “Excel cannot open the file” error. However, after various researches carried out by experts it has been found out that error generates owing to two possible reasons:
This article provides number of solutions which could be used to resolve the issue. These are discussed below:
As unsupported file extension also causes this error, firstly make sure that xlsx extension of the file is supported by Excel version from which user is accessing it. In order to check, follow these steps:
In case, one could not find out xlsx file extension under it, then the file extension can be changed as xlsx is not supported by Excel. Change the file extension to xls which is supported by it.
If corruption is prevailing in the file and even if the file extension is supported by Excel then also you will face such situation. In such case you can use the ‘Open and Repair’ option provided by the Excel to repair the corrupted file. Follow these steps to use this option:
Once the repairing process gets completed, you can access your repaired Excel file without any problem.
At times, the file is so severely corrupt that even Open and Repair option of Excel fails to repair it completely and hence you face the same problem. So in this situation you can opt for a professional Excel Repair tool which is expert in repairing corrupted Excel files regardless of the severity of corruption.