I will clean, format and organize your messy excel or CSV data
About this Gig
Messy spreadsheet? Duplicates, extra spaces, mixed date formats, broken phone numbers, codes nobody understands? I will turn it into a clean, consistent file you can sort, filter and pivot right away.
What I fix:
- Duplicates, blank rows, extra spaces
- Dates, numbers, phone numbers and text stored in the wrong format
- Inconsistent names and categories ("NY", "N.Y.", "new york")
- Split or merge columns, merge several files into one
- Missing values: flagged, never silently guessed
What you get:
- Cleaned Excel (.xlsx) or CSV, with filters and frozen headers
- A change log: every rule applied and how many rows it touched
- Premium: a Python script you can re-run on next month's file
I'm a math graduate (BS Mathematics, University at Buffalo) and I check every number before delivery. See the before/after sample in the gallery, built on 20,000 rows of public NYC data.
Please message me before ordering if your file is over 100,000 rows or needs custom rules.
FAQ
Which file types do you accept?
Excel (.xlsx, .xls), CSV, Google Sheets (share or export), and JSON. I return Excel or CSV, whichever you prefer.
Will you change or delete my data?
Only by the rules we agree on. Removed duplicates and every change are listed in the change log, and I keep your original file untouched. Missing values are flagged, not invented.
Is my data kept confidential?
Yes. I use your file only for your order and delete my working copies after delivery if you ask. I can sign a simple NDA on request.
My file is very large or messy. Can you still do it?
Usually yes. Send me a sample (even 50 rows) and a description first, and I will confirm the package or send a custom offer.
Do you use AI tools?
I use Python and AI-assisted tools to work faster. Every output is checked by me (row counts, totals, spot checks) before delivery.

