I was working on my Excel 2013 workbook and when I clicked on "Save", Excel froze up and I had to eventually CTRL+ALT+DELETE it. Then when I reopened Excel 2013, I went to my recent workbooks and clicked on the one I was working on and it told me that the file may have been moved or deleted. I went to the folder and checked to see if my workbook was there, and it's gone. However, there are now several files with the File Types of "File" and "Tmp File" I open the TMP file within Excel 2013 and it loads up my workbook just fine, but it does the exact same thing as it saves. I haven't (knowingly) added any formulas that could cause this. It happened totally randomly. I don't know what the deal is. All I did before I saved (the first time it froze) was edit some prices. Could someone please help me out with this?