You will get Clean, standardize, deduplicate, and QA your Excel or CSV data

Project details
I will turn a messy Excel workbook or CSV into a clean, consistent, reviewable dataset. I preserve an untouched source copy, remove confirmed duplicates, standardize clear date, number, currency, text, and category rules, and flag missing or conflicting values instead of guessing. I also reconcile row counts and basic totals before and after cleanup. You will receive the cleaned XLSX or CSV plus a concise change and issue log. Complex macros, APIs, dashboards, scanned PDFs, and regulated sensitive data are outside this starter scope.
Data Tool
Microsoft ExcelWhat's included $99
These options are included with the project scope.
$99
- Delivery Time 2 days
- Number of Revisions 1
- Number of Pages Mined/Scraped 5
- Number of Sources Mined/Scraped 2
Frequently asked questions
About Yuchen
Competitive Intelligence & Data Quality | Excel & Power BI
Beijing, China - 6:51 pm local time
Steps for completing your project
After purchasing the project, send requirements so Yuchen can start the project.
Delivery time starts when Yuchen receives requirements from you.
Yuchen works on your project following the steps below.
Revisions may occur after the delivery date.
Scope and rule review
I confirm the files, row and sheet limits, duplicate key, retention rule, protected columns, and output format before editing.
Deterministic cleaning and exception logging
I clean and standardize agreed fields, remove only confirmed duplicates, preserve source lineage, and flag ambiguous cases rather than guess.