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English
$
USD
I will merge, deduplicate and consolidate your CSV or excel files
From messy data to clean insights with 37 years of enterprise precision
Senior Technology Executive | 37+ years in IT & financial markets | Master's degree (Federal University of São Paulo) | Certifications from Johns Hopkins & University of Virginia.
Led critical project...
About this Gig
Have 10, 100, or 1,000 files that need to become one clean dataset? I'll merge, deduplicate, and consolidate them fast, accurately, and with full validation.
Enterprise-scale experience: 37+ years in IT and financial markets. I've consolidated large volumes of transaction files, account records, and compliance data at a major financial institution under strict regulatory requirements.
What I handle:
- Merging hundreds of CSV/Excel files into one
- Removing exact and fuzzy duplicates
- Aligning columns with different names across files
- Encoding issues (UTF-8, Latin-1, Windows-1252)
- Validating row counts and totals before and after
- Multi-sheet Excel consolidation
What you receive:
- One clean, consolidated file (CSV or Excel)
- Validation report row counts and changes made
- Python script for reuse (Premium only)
- 30-day support
Not sure if your case fits? Send me a message I'll take a quick look before you order.
Fast. Accurate. No surprises.
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FAQ
What file formats do you work with?
CSV, Excel (.xlsx/.xls), and TXT delimited files. If you have a different format, just message me before ordering.
My files have different column names. Can you still merge them?
Yes. Aligning columns with different names or structures across files is a standard part of what I do.
How large can the files be?
I've worked with datasets of millions of rows in production financial environments. File size is not a concern.
Will I receive the Python script?
Yes, in the Premium (Enterprise Merge) package only. The script is fully commented so you can reuse it anytime new files arrive.
