Split Full Names into First and Last Name
Turn a single "Full Name" column into clean First and Last columns, without writing a single formula.
Catch issues before they turn into a resend, failed import, or a question you have to answer later.
Upload your spreadsheet once. Clean That Sheet checks for full-name columns that need splitting and other common cleanup problems, then shows you a free preview before anything is changed.
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 $4.99.
Drag & drop your file or screenshot, or browse
Accepts .xlsx, .xls, .csv, .png, .jpg, and .pdf · up to 50 MB
Tip: upload the actual spreadsheet file, not Excel temporary files that start with ~$.
Free scan + cleaned sample. No charge to preview.
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
Built for
Built for business professionals cleaning real spreadsheet messes.
Clean That Sheet is made for analysts, bookkeepers, admins, operators, founders, finance teams, and spreadsheet-heavy professionals who need to clean files before sending, importing, merging, or reporting.
- Analysts
- Bookkeepers
- Admins
- Operators
- Founders
- Finance teams
- Spreadsheet-heavy workflows
You do not need to choose the perfect tool first. Upload your Excel or CSV file, review what CTS finds, and unlock only when you are ready.
CTS can also check for duplicate rows, blank rows, spacing issues, inconsistent formatting, messy headers, date cleanup, imported-data problems, and more.
Not sure what your file needs? See everything CTS can check.
How Clean That Sheet works
A finished file, not a conversation. General AI tools can help you think through a spreadsheet problem. Clean That Sheet is built to help you finish the urgent, repeatable cleanup job.
- Step 1
Upload
Drop in a CSV, Excel file, screenshot, or PDF.
- Step 2
Preview
See exactly what we found before you pay.
- Step 3
Download
Unlock the finished file when it looks right.
Preview before you pay
How a general chat tool compares to Clean That Sheet for the same cleanup job.
With a chat tool
With Clean That Sheet
Explain the problem and write prompts
Upload the file
Clarify what should be cleaned
Preview the cleanup
Check whether the output is usable
Download the finished spreadsheet
Figure out what changed
Get a Change Report
No prompts. No back-and-forth. Get your file ready before you import, merge, send, or submit it.
What Clean That Sheet actually does
Built for messy real-world files. If it has data in it, there is a good chance we can help.
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.
See the cleanup in action
One column in, two clean columns out, original preserved.
Before
| Full Name | First | Last |
|---|---|---|
| Ada Lovelace | (empty) | (empty) |
| Dr. Grace Hopper | (empty) | (empty) |
| Mary Jane Smith Jr. | (empty) | (empty) |
After
| Full Name | First | Last |
|---|---|---|
| Ada Lovelace | Ada | Lovelace |
| Dr. Grace Hopper | Grace | Hopper |
| Mary Jane Smith Jr. | Mary Jane | Smith Jr. |
Most email tools, CRMs, and customer platforms want first and last name as separate columns. Most spreadsheets store them as one. Splitting the column by hand is tedious; doing it with Excel formulas works until you hit "Mary Jane Smith", "Dr. Ada Lovelace", or "Grace Hopper Jr.", at which point the formula does the wrong thing on every edge case. Clean That Sheet handles the whole column in one pass.
We detect the full-name column automatically (or you can pick it), then split each value into first and last while keeping the rest of the row intact. Middle names go into the first-name column unless the value clearly has a separate middle field. Common prefixes (Dr., Mr., Ms., Mx., Prof.) and suffixes (Jr., Sr., II, III, PhD) are recognized and handled correctly instead of getting stuck in the wrong column.
The original column stays in the file. We add new "First Name" and "Last Name" columns next to it so you can sanity check the result before deleting the original. That way the split is reversible, if something looks off on a row, the source value is still right there.
Once the split looks right in the preview, Pay only to download the cleaned file in the same format you uploaded. The split also pairs nicely with our trim-spaces and standardize-column-names tools, first trim the spaces, then split the column, and the result is a file ready to import into any tool that expects separate first/last name fields.
This is the cleanup that turns "a list of names" into "a customer list". Useful for email campaigns, CRM imports, event registrations, recruiting trackers, and any tool that asks for first and last separately and won't accept a single column.
Want cleaner files with less work?
Get occasional updates as Clean That Sheet adds more ways to fix messy spreadsheets.