I will build a python script to validate or compare your CSV files

J
jfxyl12345
J
jfxyl12345
Peter

About this gig

Need a repeatable check for your CSV exports? I will build a reusable local Python command-line script for ONE agreed workflow.


Choose one:

- Validate one UTF-8 CSV: check agreed headers, required fields, whitespace and simple formats.

- Compare two CSVs: use one exact key and one value column to report differences. Duplicate keys are flagged as ambiguous.


Basic package: up to 500 data rows and 20 columns per input, 3-day delivery and 1 revision within the original scope.


You receive Python source, a JSON review or difference report, a sample run, a short README and tests. Your original inputs stay unchanged. Uncertain records are flagged for review.


Before ordering, send a small anonymized sample, your rules and the output you expect. Please message first for larger files or a different workflow.


This service excludes XLSX/OCR, a GUI, hosting, scraping, external API integration and fuzzy identity matching. Installation is not included.


I use AI-assisted tools and verify outputs. Gallery demos use synthetic data. Please keep all communication and payment on Fiverr.

Get to know Peter

Peter

CSV Data Cleanup and File Formatting

  • FromSingapore
  • Member sinceOct 2026
  • Avg. response time2 hours
  • Languages

    English
I help organize CSV files into consistent, usable data. Services include whitespace cleanup, duplicate review, missing-value flags and formatting based on agreed rules. Each delivery includes a change summary so you can see what changed and why. My workflow uses scripts and AI-assisted tools, with results checked against the source. Please send a small, non-sensitive sample first so we can confirm the scope and output format.