Mar 7, 2022 · In the 'Excel Options' window, under the Save workbooks section, click on the Save files in this file format: drop-down. Next, select a file format (i.e., the one supported by your Excel version).

Jul 4, 2020 · Hi All, I have a excel.xlsx file saved in my system which has been corrupted .I atleast need to recover the data stores .It is a file of 124 KB and has...

Dec 13, 2023 · Can't open XLSX file, extension not valid Hello, I can't open an Excel file that is important to me due to the extension not being valid or corrupted. I've tried about everything that I could find …

Now when I am trying to open those excel files on my laptop it is giving me "the file format or extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format …

Aug 19, 2022 · I'm trying to open a .xlsb format and I am getting the following error: "Excel cannot open the file 'name.xlsb' because the file format or file extension is not valid.

Dec 25, 2023 · I can open other existing excel files and can even create a new workbook from the excel app when its opened but I want to know why this is happening and how to resolve it.

Jul 16, 2022 · After enabling the “File Name Extension,” you can change the extension of any file. Method 2: Open and Repair Method The “Open and Repair” feature of Excel allows you to repair …

Apr 11, 2024 · The behavior you're describing, where existing Excel files open successfully but newly created ones return the ".xlsx extension is not valid" error, is certainly perplexing. Let's delve a bit …

Jan 5, 2021 · It says "Excel cannot open the file XXXXX 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 …

Feb 19, 2023 · Excel cannot open the file '.....xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matched the format of the file.