I will compare two CSV exports and build a reusable discrepancy report

Slovakia

I speak English, Ukrainian

CSV Comparison and Data Workflow Tools

I build small CSV comparison tools and clear exception reports for repetitive data workflows. My approach preserves source files, makes matching rules explicit and flags duplicate or uncertain records...
About this Gig

Find differences between two CSV exports without checking every row by hand.


I compare records using an agreed identifier and return a clear report of matches, changed values, missing records, duplicate keys and invalid values. Original files stay unchanged. Ambiguous matches are flagged, not guessed.


BASIC: two CSVs, up to 1,000 rows each, one key and one field.

STANDARD: two layouts, up to 10,000 rows each and three fields, plus a reusable local browser tool and guide.

PREMIUM: three layouts, 20,000 total rows, documented mapping and a rerun on one additional sample.


Each package includes one correction round within the agreed scope. The gallery uses synthetic inventory data, not a client case.


Please message me before ordering with 10-20 anonymized sample rows and your matching rules. AI-assisted development or processing may be used; tell me any data restrictions first. Do not send credentials, payment details or unnecessary personal data.


No live account access, website downloads, accounting or tax certification, scanned PDFs or unspecified fuzzy matching. Communication and payment stay on Fiverr.

Technology:

Other

Expertise:

Data manipulation

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Data validation