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.
The goal is what comes after the cleanup. Catch issues now so the report, import, submission, or handoff can keep moving.
Whatever needs to happen next, full-name columns that need splitting should not be the reason it stalls. Upload once and preview what CTS would clean before anything changes.
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 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
You do not need to diagnose the sheet before you can move forward. Upload the Excel or CSV file, review what CTS finds, and unlock only when the result helps you reach the next step.
CTS checks duplicate rows, blanks, spacing, inconsistent formatting, messy headers, dates, imported-data problems, and other things that can get between the file and its destination.
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 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.