I will clean, fix and validate CSV, excel or json data with python

Finland

I speak English

161 orders completed

SQL and Python data processing specialist

Hi! I'm Yara. I help turn messy business data into clean, structured files and report-ready tables. I work with SQL, CSV, Excel, JSON, and Python for practical data tasks: cleaning files, fixing data...

Level 2

Has met high performance criteria and has a proven track record for meeting client expectations.

About this Gig

I will clean, fix, and validate your CSV, Excel, or JSON data using Python.


This gig is useful if your data has duplicates, empty rows, messy column names, inconsistent values, wrong formats, or needs to be prepared for Excel, Google Sheets, reports, dashboards, or further analysis.


I can help with:

- removing duplicates and empty rows

- cleaning column names and values

- fixing inconsistent text, dates, or number formats

- selecting, renaming, or reordering columns

- validating required fields and basic data rules

- converting data between CSV, Excel, and JSON formats

- preparing a clean structured output file


Please message me before ordering if your file is very large, deeply nested, contains sensitive data, or requires complex custom validation rules.

Technology:

Excel

Google Sheets

Python

Expertise:

Data manipulation

Data validation

Normalization