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English
$
USD
I will clean and standardize your excel csv data dedup fix dates fix amounts
Clean Sourced Verified: Data Entry, Excel, Lead Lists
I help businesses stay organized and move faster by handling data entry, web research, transcription, and admin tasks. I work with Excel, Google Sheets, and CRM data entry, and hold certifications in ...
About this Gig
Duplicate rows everywhere. Dates written as "12/3/2026", "Dec 3", and "2026-03-12" in the same column. Amounts with $, USD, 元, and ¥ mixed together. Empty cells that should be zero. Spaces you can't see but Excel treats as text.
This is the data everyone has. It's the data you export from your CRM, your website, your accounting software, or your supplier. And it's unusable for analysis, pivot tables, or importing into another system until it's cleaned.
I clean and standardize messy Excel and CSV files so they're analysis-ready. My pipeline:
Removes duplicate rows (exact and fuzzy match)
Standardizes dates every format becomes ISO (YYYY-MM-DD)
Normalizes amounts $, , ￥, USD, and mixed symbols all become clean numbers
Handles full-width characters （），％ vs (),,% converted to standard ASCII
Preserves your original file you get a new cleaned file, never overwrite
What you get:
1. Cleaned Excel or CSV file
2. A summary of what was changed (row counts, what was removed, what was normalized)
3. Free 1-round revision
Upload a sample first I'll tell you exactly what I can clean before you order.
Platform:
Excel
•
Google Sheets
•
Microsoft Office
Development technology:
Python
•
Power Query
•
Excel
Expertise:
Formatting
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Fixing
•
Formulas
•
Cleaning
•
Data validation
My Portfolio
Other Data Processing Services I Offer
FAQ
Do you work with multiple sheets in one Excel file?
Yes. On Premium tier, every sheet is processed. Basic and Standard cover the main sheet.
Will you overwrite my original file?
No. You always get a new file. Your original stays untouched.
Can you handle Chinese, Japanese, or mixed-language data?
Yes. The pipeline handles CJK full-width characters, mixed currency symbols, and multilingual datasets.
What if my file is bigger than the tier limit?
Send me your file size and I'll quote a custom price. No hidden fees.
