To clean an Excel file, choose it, tick the clean-up steps you want and select Clean file. The cleaned sheet downloads as XLSX or CSV with a bold header row.
Duplicate removal keeps the first occurrence of each row and never removes the header.
How to use the Excel Cleaner
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1
Choose the file
The first sheet is cleaned.
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2
Pick clean-up steps
All steps are on by default.
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3
Clean and download
Output as XLSX or CSV.
How it works
Uploaded over HTTPS, processed on our server and deleted automatically within an hour.
Features
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Trim and collapse spaces
Also fixes non-breaking spaces from web copy.
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Remove empty rows/columns
Gets rid of gaps from exports.
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Remove duplicates
Exact duplicate rows after trimming.
When to use it
- Preparing lists for mail merge or CRM import.
- Cleaning exported reports before analysis.
- Deduplicating contact or product lists.
Privacy and file handling
- Where it runs
- Processed on our server
- Retention
- Uploaded and converted files are deleted automatically within 1 hour(s).
- File size limit
- 5 MB per file
- Cost
- Server mode: 3 free a day, then 1 credit(s) each.
Files are uploaded over HTTPS, processed on our server, and automatically deleted within 1 hour(s).
Limitations
- Only the first sheet is processed.
- Duplicates must match exactly (after trimming); “Asha” and “asha” are different.
- Formatting and formulas are replaced by values.
Frequently asked questions
Which duplicate is kept?
The first occurrence; later identical rows are removed.
Are formulas kept?
No, cells contain their calculated values in the cleaned file.
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