Spreadsheet cleanup tip: Before deleting duplicate rows, check whether the key column should be unique and flag blank IDs first. Keep an untouched copy of the source so you can trace each cleanup step. I offer cleanup for small spreadsheets (up to 100 rows and 10 columns), with an audit trail and unclear entries flagged. Details: https://contra.com/s/sNoArgMb-clean-up-to-100-spreadsheet-rows-with-an-audit-trail — $15.