I will merge, match and vlookup two excel or CSV files
Excel, CSV cleanup and matching, Python automation, Windows, local AI, old games
About this Gig
Have a CSV with blank fields and a second CSV that may contain the answers? I will match your two files using one or two agreed exact-key columns, fill only blanks supported by an unambiguous reference match, and deliver an enriched CSV with a row-level change and exception report.
For $50: one source CSV and one client-supplied reference CSV, each up to 100 data rows and 10 columns. I can copy up to one new column from the reference. Delivery is three days after complete intake, with one revision.
Existing conflicting source values stay unchanged and are flagged. Unmatched or ambiguous rows are flagged for review. Your original files are not overwritten.
I use a tested, AI-assisted Python workflow and check the output. The sample is a self-directed fictional demonstration, not paid client work. I do not search the web, invent missing values, use fuzzy matching, or guarantee every blank can be filled. Message me with a redacted sample before ordering if your files are larger or need different rules.

