Excel connot open file (filename) xlsx

Microsoft corporation Office 2010 profes...
December 12, 2014 at 00:22:23
Specs: Linux x86_64), 8GB
I have several excel files stored on my system. I used these files from the same computer daily. Yesterday, when i tried to open several files in Excel 2007 then i found following error on my co,puter screen: "Excel connot open file (filename) xlsx 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" How fix it?

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December 12, 2014 at 02:17:19
Try opening your backup copies of those xlsx files instead.

You didn't save any backup copies? Then maybe this will help:

In future, back up all your files. All hard drives fail eventually, and when that happens you lose everything. Doesn't that bother you?

message edited by phil22

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December 12, 2014 at 05:47:32
Have you tried using the "Open and Repair" option from within Excel?

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May 15, 2015 at 10:25:09
The excel files you are trying to open, do they have a .xlsx extention? The extension should be .xls. Did you get these files from someone else who has Office 2010 or 2013? If so, they need to save those files as .xls.

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May 15, 2015 at 10:54:48

Aside from the fact that you are replying to a post that is close to 6 months old, you are mistaken regarding the file extension issue.

You will note that the OP said "...when i tried to open several files in Excel 2007..."

MS introduced the XML file format (xlsx) when Office 2007 came out. In addition, earlier versions of Excel can open xlsx files if the Compatibility Pack is installed:


Since the OP said he is using Excel 2007, the file extension of xlsx is probably not the root cause of the problem. It's too bad that he never came back and told us what the actual problem was.

Click Here Before Posting Data or VBA Code ---> How To Post Data or Code.

message edited by DerbyDad03

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