can not open excel wooksheet

[bk6151]

I have an excel worksheet that all of a sudden will not open. It opened fine yesterday. Gives error message "excel cannot open the file because the file format or file extension is not valid.” I have data on it that I desperately need to get back. Any help would be greatly appreciated

 

[Joe4]

Welcome to the Board!

What is the full name of the file (including the file extension)?
What version of Excel are you using?

 

[bk6151]

excel 2007. file name: talladega report.xlsx

 

[bk6151]

I tried the open and repair function. didnot help. same error message

 

[Joe4]

It seems to think that the file is not in a valid Excel foramt.

Did you open this file using something other than Excel recently?
Did you change the file extension recently?
Or did you did a "SaveAs" and choose a different format?
Was this file originally created in Excel 2007?

If none of these things is out of the ordinary, it may mean that you have a corrupted file.

 

[bk6151]

never opened it with anything but excel. Yes it was created with excel 2007 on this machine. I have other reports for other citys and they open fine.

 

[Joe4]

Unfortunately, I would say that may mean you have a corrupted file.

 

[bk6151]

how can I uncorrupt it. probably can't huh.

 

[Joe4]

If you fo a Google search on "repair corrupt Excel file", you will find a number of programs that claim to do this. I cannot speak as to how well any of these work, I have never used any.

Do you back-up your files regularly? If so, just get the last good back-up of this file. (If you don't, it is a good time to start a back-up plan!).