R
Ralph Walters
I tried to open a spreadsheet that I've been using for some time. I got a
message: "file format is not valid". Did I do something wrong when I last
used the file? How can I open the file? If I don't know what's wrong, I
hesitate to open any of my excel files for fear that It may happen again.
Maybe I'll print all of my important files for safe keeping.
message: "file format is not valid". Did I do something wrong when I last
used the file? How can I open the file? If I don't know what's wrong, I
hesitate to open any of my excel files for fear that It may happen again.
Maybe I'll print all of my important files for safe keeping.