Spreadsheet Cleanup Tool for Excel, CSV & Google Sheets™
You have something to finish. This spreadsheet is not allowed to win.
Send the report. Import the contacts. Hand off the client file. Whatever needs to happen next, Clean That Sheet™ helps get the messy file out of the way so you can keep moving.
Start with a file
Free preview. Your original stays unchanged.
Drag & drop your file or screenshot, or browse
Accepts .xlsx, .xls, .csv, .png, .jpg, and .pdf · up to 50 MB
Tip: upload the actual spreadsheet file, not Excel temporary files that start with ~$.
See what is in the way and what CTS would fix.
No signup. Original file unchanged. View Trust & File Handling
On mobile, screenshots and CSVs work best. Larger Excel files are easier from desktop.
Not ready to upload? See a Sample Cleanup
- 1Upload your file
- 2Preview the cleanup
- 3Download the finished file
See cleanup options · Free preview. Pay only to unlock the finished file.
File
leads_q3.xlsx
1,248 rows · 8 columns
Cleanup
| jane DOE | Jane@Email .com |
| john smith | john@@mail.com |
| MARY Johnson | mary.j@biz |
| empty |
| Jane Doe | jane@email.com |
| John Smith | john@mail.com |
| Mary Johnson | mary.j@biz |
Already in Google Sheets™?
Keep the work moving inside your sheet.
CTS Guard checks the tab you are already using before it goes anywhere else.
Free preview first. Full cleanup only if it helps.
Upload your file to see an issue summary, duplicate groups, blank rows, sample cleaned rows, and cleanup notes. If the preview looks useful, unlock the full cleaned file and change report for $4.99.
The goal is not to clean a spreadsheet.
The goal is to send the report, finish the import, hand off the client file, and move on with your day. But at some point, you gotta clean that sheet. CTS helps without turning cleanup into the whole project.
Built for
Built for people with something to finish, not a spreadsheet to babysit.
Analysts, bookkeepers, admins, operators, founders, and finance teams use CTS to get files ready for the send, import, merge, report, submission, or handoff that actually matters.
- Analysts
- Bookkeepers
- Admins
- Operators
- Founders
- Finance teams
- Spreadsheet-heavy workflows
The spreadsheet is one step. Your goal is what comes next.
A finished report, successful import, clean handoff, or client-ready file is the point. Clean That Sheet™ helps with the repeatable cleanup step so you can get there without making spreadsheet repair your whole afternoon.
- Step 1
Bring the file that is in the way
Drop in a spreadsheet, CSV, screenshot, or PDF.
- Step 2
See what needs attention
Preview what CTS would clean before you commit.
- Step 3
Keep the work moving
Get a cleaned copy for whatever needs to happen next.
The cleanup is one step, not the whole job
Preview the actual file, understand the changes, and keep moving.
With a chat tool
With Clean That Sheet™
Explain the problem and write prompts
Upload the file
Clarify what should be cleaned
Preview what CTS would clean
Check whether the output is usable
Download a cleaned copy
Figure out what changed
Get a Change Report
No prompts. No back-and-forth. Get past the cleanup step and back to the import, report, submission, or handoff.
What CTS gets out of your way
Bring the messy real-world file. Leave with something ready for the next person, platform, or decision.
Supported files
- Excel files (.xlsx, .xls)
- CSV exports
- Screenshots (.png, .jpg)
- PDF report tables
Common cleanup outcomes
- Duplicate rows removed or flagged
- Blank rows and empty columns cleared
- Dates and number formats standardized
- Extra spaces and casing cleaned up
- Invalid emails and obvious errors flagged
- Original structure and headers preserved
- Preview flags messy cells before payment.
- Duplicates, blanks, formatting issues, and invalid emails are easier to spot.
- You decide whether the cleanup is worth unlocking.
- Tested on messy exports, contact lists, transaction sheets, and screenshot cleanups.
“We've found this tool to be a great fit for the kind of spreadsheet work we do at Lombard Toyota. It helps turn large, messy data exports into something much easier to read and work with, without requiring a lot of manual cleanup.
What we especially like is that it seems to understand the structure of dealership data instead of treating every column the same. That saves time and makes the finished spreadsheets much more useful for our day-to-day work.
Definitely a helpful tool for an automotive dealership working with a lot of data.”
Lombard Toyota
Google Workspace Marketplace™ Review, August 13, 2026
See what stopped being a problem.
The same file. Less standing between you and done.
| Name | Joined | |
|---|---|---|
| jane DOE | Jane@Email .com | 1/3/24 |
| john smith | john@@mail.com | March 4 |
| MARY Johnson | mary.j@biz | 2024/03/12 |
| empty | empty | |
| jane doe | jane@email.com | 01-03-2024 |
| name | joined | |
|---|---|---|
| Jane Doe | jane@email.com | 2024-01-03 |
| John Smith | john@mail.com | 2024-03-04 |
| Mary Johnson | mary.j@biz | 2024-03-12 |
Summary
Get Messy Excel and CSV Files Ready for What Comes Next
Send the report, finish the upload, complete the handoff, or move the analysis forward. Clean That Sheet™ helps with the cleanup step so the spreadsheet does not become the whole project.
Clear the Spreadsheet Problems Standing in the Way
Remove duplicate rows, standardize formatting, clean column names, trim extra spaces, and organize messy data before the file reaches the next person or system.
Built for People With Something to Finish
Sales reports, vendor lists, customer exports, inventory files, and marketing data are means to an end. CTS helps get the sheet ready so you can get back to the actual job.
Popular spreadsheet cleaning tools
Pick the thing standing between this file and done. Every path leads to the same preview-first cleanup.
- Clean a CSV file online
- Remove blank rows from a spreadsheet
- Remove duplicate rows
- Trim extra spaces in a spreadsheet
- Remove empty columns from a spreadsheet
- Clean Google Sheets™ data
- Standardize spreadsheet column names
- Fix messy imported spreadsheet data
- Repair broken Excel formulas
- Split full names into first and last name
- Spreadsheet cleaner
CTS Integrations
Help users finish the workflow without leaving your software
When a CSV or Excel file blocks a submission, import, or handoff, CTS can identify the issue, apply approved corrections, and return the corrected file with a structured Change Report.
Pilot integrations are available upon request for select software and platform partners.
Want cleaner files with less work?
Get occasional updates as Clean That Sheet™ adds more ways to fix messy spreadsheets.
Frequently asked questions
Everything about getting the sheet out of the way.
Pay for the cleanup. Get on with the actual job.
Work inside Google Sheets™ with Clean That Sheet Guard™, or clean one file here. Preview the help first and choose the path that gets you moving again.
Spreadsheet Cleanup
Free preview. Pay only to unlock the finished file.
Get My File Ready: Free PreviewWork in Google Sheets™ every week? Clean That Sheet Guard™ Pro is $9.99/month with unlimited checks. See Guard Pro
What needs to happen after this sheet?
Send it, submit it, import it, report from it, or hand it off. Use CTS Guard inside Google Sheets™ or upload one file here and get the cleanup step out of the way.