I work with Excel files often. On occassion, I am asked how many hours/minutes I put into a specific file. So, if I spend 2 hours in a spreadsheet, I want a calculation that will add up the time, and display 2 hours. Does someone know how to calculate the exact you spend in a specific spreadsheet? I don't want to use the TODAY() function as it will automatically update with incorrect data. Thanks as always for all the help.