I will clean merge deduplicate and process CSV or excel data

Do you have messy, duplicated, inconsistent, or difficult-to-use data?

I will clean, merge, deduplicate, normalize, transform, and validate CSV, Excel, or JSON files according to clearly defined rules. You receive a clean structured file ready for analysis, import, reporting, or daily business use.

Services may include:

removing duplicates using agreed matching rules

merging multiple files

normalizing text, dates, phone numbers, addresses, and categories when rules are supplied

fixing, renaming, mapping, splitting, or combining columns

removing blanks and unwanted rows

sorting and filtering data

converting CSV, XLSX, and JSON formats

creating basic calculated columns

validating the final structure and output

Please message me before ordering if the rules are complex, the files are very large, or the expected output is not yet defined.

This Gig does not include manual web research, data enrichment, web scraping, personal-data sourcing, dashboards, database or server deployment, or a custom application.

A revision means correcting the result within the agreed source files and rules. New files, rules, output formats, or larger volume are additional scope.