A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
You can loop through thousands of files - opening each, changing whatever needs to be changed, the saving and closing it. If the data being changed is in different locations, then you would just need to use some logic in the code to find it. So, can you describe the logic (sheet and cell logic, if needed)? Also, explain the logic for choosing which files need to be changed (select the files, process a folder of files, process files by naming convention, etc.).