I'm at a loss. I use a private point of sale program that I can save specific data to an excel spreadsheet, recently (and I haven't a clue why) when I save the data as I alway have in the *.xls format. The cells which contain a three columns of date; dates, invoice numbers and dollar values the dollar values can't be added. I've formated the cells as everything I can think of, I've checked to make sure the data isn't protected and if I copy those number to another spot they can't be added either its like the data is text but the formatting is changed I can't figure it out. Anyone want to take a crack at this I can email you the sheet it only has 30 or so cells of number not a big file.