Chalk this up to being someone who never uses excel. I have excel 2007. I was trying to save the file when it mentioned something about a fidelity issue. I clicked "open in a new page", thinking it was going to open another copy of the spreadsheet. Well once it was open, it was just an excel file of the same fidelity issue warning. I clicked close and it asked if I wanted to save it and I said "no" not realizing it was talking about my work also.
I tried to look this up, I can't possible have been the first idiot to do this. I haven't done anything to the computer. I haven't opened excel again. I haven't made any changes to anything except doing a quick search on the internet and a search on here. It's been an awful week and this is just the icing on the cake.