I just finished an audit of the last 3 years on my computer. It took me 2weeks to complete! When done my computer was running slowly so I decided to back up my files on my other computer. I have about 5000 files to transfer. Of course I only have a 1gb memory stick to do this. Also of course my cd burner stops working. So I start copying a and pasting via mem stick. I start getting confused as to what has already been copied. Since I plan a format/re-install, I figure cut and pasting instead will save a ton of time and confusion as to what's already been copied. I get about half my data transferred and the hard drive in the other computer crashes and the computer won't even start with that drive plugged in. Well I have about 5GB of data lost due to the fact that cut and paste doesn't send files to the recycle bin. After a panic attack and resolving to spending the next 2 weeks rebuilding my spreadsheets I decide to do some research. I found a program Pandora Recovery. It found hundreds of deleted xls files but none were the final version of my ledger. I thought that I wish I had printed a copy on paper. Then Realized I might have for the IRS. Looking in my Tax folder I find a Paper copy. I'm so relieved all I have to do now is get an old copy and reconcile it with my paper copy. That will reduce a 2 week job to about 1-2 hrs.. I found an Ledger.xls~RF128e3d8.TMP file. I tried to rename it but excellsays it's either corrupt or not a file excel can open as a spreadsheet. Maybe I will try some other recover software before working on converting thepaper copy back to excel. BTW I believe these tmp files are created by excel as I have always seen them in my documents folder on every computer I have worked on. Most don't have antivirus and none are networked.