I have a user that thinks everything must be opened in Word--Pdf's, jpgs,
everything. This is usually not an issue but she also opens up Excel sheets
into word--which is not a problem EXCEPT she then saves the sheet using Word
and this changes all the formatting and makes it impossible for the sheet to
be opened except in word. Trying to open it in Excel gives you a "file format
is not valid" error.

I tried to save the file as RTF and then open it in Excel, but it doesn't
work--it opens but what I have is not usable.

Is there a way to convert it back so it can be opened in Excel and the
formatting will be back to the way it was?

Thanks