I will clean, validate and fix excel or CSV data

Germany

I speak German, English

Mister

I fix broken APIs, webhooks, workflows, AI outputs, and data issues. Failed requests, invalid payloads, inconsistent JSON structures, downstream workflow failures, and unstable automations are trace...
About this Gig

Excel and CSV files often contain hidden issues that cause failed imports, broken workflows, inconsistent reporting or unreliable business data.


This service focuses on cleaning, validating and repairing datasets so they become structured, reliable and ready for operational use.


Common issues include:


duplicate records

inconsistent formatting

broken or corrupted CSV structures

missing or invalid values

inconsistent columns or field types

import-breaking spreadsheet issues

hidden data inconsistencies

Files can be cleaned, normalized and validated before being used in systems, workflows, reporting or business operations.


Services can also include:


comparison between two Excel or CSV files

detection of changed or inconsistent records

validation of large datasets

preparation of workflow-safe and import-ready files

Every dataset is reviewed systematically to identify

the actual source of the issue rather than only correcting visible errors.



My Portfolio