Exports from CRMs, forms and old spreadsheets arrive dirty: three phone formats, emails with spaces, names in caps, the same customer three times. I return a file you can import without fixing it by hand first.
What I do: trim and collapse whitespace, normalise names and case, bring phones to one format (E.164 or the one you ask for), lowercase and validate emails, split or join columns, convert text that should be numbers and dates into real numbers and dates, and remove duplicates by the key you choose.
What you get back: the cleaned file (.xlsx, .csv or Google Sheet), a second tab with every row that failed a rule and the reason, and a short summary of what was changed — so nothing is silently rewritten.
How it runs: you send the file and your rules (or I propose them from the data), I clean a 50-row sample for your check, then the full file.
Scope for this fixed price: up to 5 000 rows and up to 25 columns, one file. Larger volumes or a script you can re-run yourself every week — message me and I will quote it.