That option would make it so much more useful., because I probably spent more time analyzing what was happening in the spreadsheets, seeing how they related to each other, than writing the actual script.
Or at least change field names, because the <ID> column in items_output is currently the same as the <item ID> column in files_output. The columns should have the same name. Note: <ID> in files_output is not the matching field.
Again, thank you!