Rename column headers in an Excel file
Every export names its columns differently, and the report you paste them into expects one set of names. Rename them in one pass, values untouched.
The instruction to paste
Example instruction
Rename the Region column to Sales Region, and Amount to Total Amount
What comes back
| Region | Product | Amount |
|---|---|---|
| EMEA | Alpha | 1200 |
| APAC | Beta | 340 |
| EMEA | Gamma | 890 |
| Sales Region | Product | Total Amount |
|---|---|---|
| EMEA | Alpha | 1200 |
| APAC | Beta | 340 |
| EMEA | Gamma | 890 |
How it works
- 01
Upload the file — .xlsx, .xls or .csv, up to 100 MB.
- 02
Paste the instruction, changing the column names to the ones in your own file.
- 03
Download the result. Whatever was cut comes back on a separate tab, so nothing is lost.
Other ways to ask
The instruction is read as a sentence, not filled into a form. These all work on the same file.
Put every header in lower case and replace the spaces with underscores
Remove the leading "col_" from every header name
The rows and values in your file are never sent to an AI model — only the column headers and your instruction ever leave our servers.
Questions
Do the values change too?
No. Renaming a header touches the header row and nothing else.
Can I rename every column at once by a rule?
Yes — describe the rule, such as lower case with underscores instead of spaces, and it applies to all of them.
Can I rename and reorder in the same run?
Yes, and you can drop columns at the same time. It is all one pass over the file.
Related tasks
See everything you can ask forTry it on your own file
Create an account, upload your spreadsheet and paste the instruction above.