Remove duplicates and clean messy Excel files with an instant preview
Upload your Excel or CSV file and see a cleaned preview instantly. No account required.
Your file stays in your browser.
Private by design: your spreadsheet is processed in your browser. We do not upload, store, sell, view, or share your spreadsheet contents.
No signup required
- Excel & CSV files
- Duplicate rows removed
- Real cleanup, no tutorials
- Files handled carefully
| Name | Date | |
|---|---|---|
| jane DOE | Jane@Email .com | 1/3/24 |
| john smith | john@@mail.com | March 4 |
| MARY Johnson | mary.j@biz | 2024/03/12 |
| (blank) | (blank) | (blank) |
| jane DOE | Jane@Email .com | 1/3/24 |
| Name | Date | |
|---|---|---|
| Jane Doe | jane@email.com | 2024-01-03 |
| John Smith | john@mail.com | 2024-03-04 |
| Mary Johnson | mary.j@biz | 2024-03-12 |
Your file, your data
Your file is used only to clean and generate your downloadable result. We don't sell your data or use it to train anything.
Your original file is never overwritten
You'll get a separate cleaned file to download. The file on your computer stays exactly as it is.
How it works
- 1Upload your spreadsheet
- 2Clean That Sheet processes it
- 3Download your cleaned file
What this can help with
- Remove duplicate rows
- Fix inconsistent spacing
- Standardize messy column names
- Clean up common spreadsheet formatting issues
- Prepare a cleaner downloadable file
You don't need another Excel tutorial. You need the spreadsheet fixed.
If you've been searching how to remove duplicates in Excel, how to clean data in a column, or how to delete duplicate cells — you already know what you want. You just don't want to spend an afternoon doing it.
- Trying to remove duplicates in Excel and the formula keeps breaking
- A column full of names, emails, or dates in five different formats
- Hundreds of blank rows and duplicate cells you'd have to delete by hand
- A messy CSV export that won't import cleanly anywhere
- A spreadsheet that needs to look right before you send it to a client or boss
Upload your messy file, preview the cleanup instantly, and get the full cleaned spreadsheet in seconds.
What we fix
Practical Excel data cleaning for messy spreadsheets — no overcomplicated consulting.
Remove duplicate rows
Delete duplicate cells and duplicate rows from any column you choose — by email, name, ID, or full row.
Clean messy columns
Tidy junk columns, merged headers, stray spaces, and inconsistent capitalization.
Standardize names, dates, and formatting
Get consistent date formats, properly cased names, and uniform formatting across the whole sheet.
Fix inconsistent data
Reconcile mismatched values, typos, and the same thing written five different ways.
Organize Excel or CSV files
Reorder columns, split or combine fields, and turn a messy export into something usable.
Prep for reports, uploads, or analysis
Get your spreadsheet ready for a CRM import, a client report, or your next round of analysis.
How it works
Upload your messy file and see a cleaned preview instantly.
Upload your spreadsheet
Add your Excel or CSV file. No account required.
Preview the first 5 cleaned rows
We clean a sample instantly so you can see how duplicates, messy columns, and formatting issues will be handled.
Clean the full file
If the preview looks right, continue to get the full cleaned spreadsheet.
A simple, honest spreadsheet cleanup tool
Upload your file, preview the cleanup instantly, and download the cleaned spreadsheet.
- Files are handled carefully and only used for the cleanup you asked for
- Preview the first 5 cleaned rows before committing to the full file
- Great for small business owners, operators, freelancers, and recruiters
- Perfect for anyone stuck with messy Excel or CSV files
Frequently asked questions
- What does Clean That Sheet do?
- Clean That Sheet cleans up messy Excel and CSV files automatically. Upload your spreadsheet, preview the first 5 cleaned rows instantly, and get the full cleaned file when you're ready.
- How do I remove duplicates in Excel without doing it myself?
- Upload your file and choose which column defines a duplicate (for example email, order ID, or full name). You'll see a preview of the cleaned rows immediately, then get the full spreadsheet with duplicates removed — no formulas, no tutorials, no Excel wrestling on your end.
- What kinds of files can I send?
- Excel files (.xls, .xlsx) and CSV files up to 50 MB. If your file is bigger or in another format, email us and we'll figure it out.
- How long does it take?
- The preview is instant. The full cleaned spreadsheet is ready in seconds after you confirm the preview looks right.
- What is this not designed for?
- We focus on practical cleanup of messy spreadsheet data. We don't build dashboards, write macros, design pivot tables, or take on complex financial modeling or custom data consulting.
- Who is this for?
- Small business owners, operators, freelancers, recruiters, marketers, and anyone stuck with a messy Excel or CSV file they don't want to clean by hand.
- Do I need an account?
- No account is needed. Upload your file, preview the cleanup, and download the cleaned spreadsheet.
- How is my file handled?
- Your file is handled carefully and only used to do the cleanup work you asked for. We don't sell, publish, or share your spreadsheet contents.
Still have a question? Email cleanthatsheet@gmail.com.
What we don't do
A quick, honest list — so you know exactly what you're getting.
- We don't manually review your spreadsheet
- We don't share or sell uploaded files
- We don't require an account for basic cleaning
- We don't overwrite your original file
Stop fighting with Excel. Upload your file and see the cleanup instantly.
Duplicate rows, messy columns, inconsistent formatting — get a preview in seconds, then the full cleaned file.
Excel & CSV · Instant preview · No account required
Built by an independent founder in Chicago to make spreadsheet cleanup faster for normal people, freelancers, and small teams.
Clean That Sheet is an Almeyda Holdings LLC project.