I will clean up your messy CSV files and remove duplicate rows

United States

I speak English

Technical Documentation and CSV Data Cleanup

TALLY is a small technical operation: documentation and data-file cleanup. Fixed scope, fixed price, agreed in writing before you pay. What I do: - Technical documentation: README files, API docs, se...
About this Gig

Send me a messy CSV and get back a clean one, plus a plain-text report listing every change that was made.


What I do:

  • Trim stray spaces around values and column names
  • - Remove empty rows and exact duplicate rows
  • - Split one file into parts, by a column's values or a fixed row count
  • - Merge several files with matching columns into one, tagged by source
  • - Report on a file without changing it, if you just want to know what is wrong

What I do NOT do, so there are no surprises:

  • Guess missing values or invent data
  • - Merge records that merely look similar
  • - Convert ambiguous dates, because 03/04 could be March or April
  • - Check whether your data is factually correct

Formula-like cells are flagged, never silently rewritten.


File limits: UTF-8 comma-separated CSV, up to 2 MB and 20 columns per file.


You keep your original. Every job returns a report with row-level detail and a checksum, so you can verify exactly what changed before you rely on it.


Not sure which package fits? Message me your row and column count and I will tell you.