I will clean and standardize your messy excel or CSV data safely

Japan

I speak English

Excel and CSV Automation

I help businesses organize messy Excel and CSV data into practical, easy-to-use tools. I can combine multiple files into one report, clean and organize spreadsheet data, create Excel dashboards and K...
About this Gig

Messy data breaks reports, imports, and mail merges. I clean and standardize Excel/CSV files safely - without changing what your data means.


WHAT I FIX AUTOMATICALLY:

Extra spaces and inconsistent capitalization. Mixed number and currency formats (1,200 / $1200 / full-width digits become 1200). Mixed date formats, unified only when unambiguous. Exact duplicate rows (removed and logged). Column names standardized across files (explicit mapping, no guessing).


WHAT I FLAG FOR YOUR REVIEW - NEVER GUESS:

Ambiguous dates (01/07/2026: Jan 7 or Jul 1?). Conflicting duplicates (same ID, different values). Name variants that may be the same customer. Values that cannot be parsed (kept as-is, listed).


WHAT I NEVER DO:

Overwrite your original file - you always get a cleaned copy plus a full change log. Fill in missing values by guessing. Merge records that only look the same.


This is different from file merging (I offer that separately): the goal here is data quality and safety, not combining sources.


Every delivery includes a review report listing every change made and every item that needs your decision.


All gallery images use self-created sample data. No client data is shown.