I will clean excel and CSV data with duplicate and error checks

Turn a messy Excel or CSV table into a clear, checked file.

This package covers ONE table with up to 100 data rows and 10 columns. I normalize agreed dates and labels, correct values supported by your instructions, identify duplicates using your chosen key, and flag missing or ambiguous values.

You receive:

- The preserved original and a cleaned table

- A duplicate and exception log

- Before/after row counts and agreed totals

- A short explanation of changes

Delivery: 2 days after complete requirements. One revision for the original scope. Please message me on Fiverr with a sanitized sample first if the structure or rules are unclear.

I use AI-assisted processing and reproducible checks. Unknown values are flagged, never invented; records are not silently deleted. This is data cleanup, not accounting advice, data scraping, macro development or a dashboard build. No passwords or account access are needed. Please remove sensitive personal data before uploading.

My examples are independent demonstrations, not paid-client projects.