Two exports of the same list, merged by hand three years ago, and now nothing trusts the spreadsheet. This is a small, boring job that quietly blocks everything downstream - and it is exactly the kind of work that should not take a week.Send one file. I clean it: consistent formatting, correct types (dates, numbers, postcodes, phone numbers), duplicates found and merged with the surviving row chosen deliberately rather than arbitrarily, empty and broken rows handled by a rule you approve, and everything normalised to whatever system it has to feed.You get back a clean file, a duplicate report so you can check my decisions, and the list of rows I refused to guess on.One file, one target format. If the data needs collecting from a source as well, that is the scraping service rather than this one.
