So I go to lunch and come back to my spreadsheet and things have changed. This isn't the first time this has happened. Magically there are a bunch of cells whose formating, values, and formulas have all changed. I don't believe this is the work of someone tampering with the file as there are only a few people with access to the directory and no one would even know where to look for it nor that I am working on it. Anyone know of any excel viruses, mal-ware, etc?