I will clean and validate excel or CSV data for business system import

United States

I speak English
Hello! I'm Patrick, a data conversion specialist with 20 years of experience in turning complex data sets into easily manageable formats. My expertise lies in providing precise and efficient solutio...
About this Gig

Preparing a spreadsheet for CRM, accounting, ecommerce, or database import?


I will clean and validate Excel, CSV, or Google Sheets data so it is consistent, structured, and ready for business use, not just visually tidy.


Services can include:

- Removing duplicates, blanks, and extra spaces

- Standardizing dates, numbers, case, and text formats

- Splitting, merging, or mapping columns to a supplied template

- Preserving existing formulas

- Flagging missing, invalid, or questionable values

- Checking consistency across sheets

- Providing a short change summary


Best for customer lists, product catalogs, SKUs, accounting exports, CRM migrations, ecommerce uploads, and recurring reports.


I may use Excel, Power Query, or AI-assisted tools, but I manually review the final output against the agreed rules.


Research, scraping, missing-data completion, complex formulas, macros, dashboards, and analysis are not included unless agreed in a custom offer. Message me first for more than 3,000 rows, over 5 sheets, macro-enabled files, sensitive data, or a named-system import.


Revisions cover corrections to the agreed cleanup rules, not a new scope.