For the 2nd time, I've invested many hours building a spreadsheet with
lookups, naming, and validations. I've saved the file to my flash drive and
when I open it at home on my laptop, nothing is there. I can get the name of
the file across the top of the screen and no workbook is there.

The entire Window button of options (Unhide, Arrange, etc.) are greyed out.
But it's got the file name across the top. If I open in Notepad, I can tell
the stuff is there.

I can recreate this AGAIN, with another 5 hours of work, but I'm afraid it
too will vanish.

Help Please.