Hi, I'm wondering if there is a way to subtract a reference data set from a number of different workbooks in one go. As far as I see, I can only add a single input (selecting more does not work) and manually doing this for hundreds of workbooks is tedious and prone to errors. Is there a smart way to do this? Thanks! Origin Ver. Origin Pro 2020 and Service Release: 9.7.0.188 Operating System: Windows 10