Hi there
I know that this has been asked a million times already but today I went to use a 2010 excel document that I hold a usb stick and the file comes up with the following:
"excel found unreadable content in "file name.xlsx" Do you want to recover the contents of this workbook? If you trust the source of this workbook, click yes"
so I clicked yes...
"Excel cannot open the 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"
I've tried everything, even trying to open in google docs wont work, it wont allow me to change the file type to anything but .xlsx
please help! this document is several years old and is a monthly took I use :(
Thanks
Jess