My situation is: 1. I have 50 workbooks, each workbook contains data in the same format for that specific object. 2. I need to create formulas for each workbook on a separate sheet to derive statistic results. 3. Don't want to type in 50 times of same formulas for each workbook base on their object names. (eg. for workbook1 I will have SUM(Workbook1Sheet1!A1:A100), then for Workbook2 I need to do same but change to Workbook2Sheet1) 4. Is there a script or a way to import excel formulas and it will able to detect the Sheet name and just work out the formula? Thanks!