Merge spreadsheets

Join sheets with identical column headers.

Free to usePrivate filesNo watermarks

Your next task starts here.

How to use Merge spreadsheets

Join sheets with identical column headers.

Supported input: CSV or XLSX, first worksheet
Your result: XLSX workbook
Account and limits: Free verified account · 20 MB per operation · 100 uses per day

Choose CSV or XLSX files with identical first-row column headers.
Arrange the files in the order you want their rows joined.
Create the merged workbook and review the row count and identifiers.

Before you start

The first worksheet is processed, with up to 10,000 data rows and 50 columns. PDF tables support up to 500 rows and 12 columns.
Imported formulas are not evaluated. CSV formula-like values are escaped and identifiers are kept as strings.

Generated files expire after 24 hours. Keep a copy of important results. Read the help guide or report a problem.

Three small steps. One task done.

Choose your files or enter the details you want to work with.
Adjust the options, then create your result. Check the preview when available.
Download your result. Generated files expire after 24 hours; saved documents stay until you delete them.

A few things to know

Is this tool free?

Yes. Every enabled tool is free for registered users, within the daily and upload limits shown above. No payment or watermark.

What happens to my files?

Uploads are processed for your request. Generated results are stored privately for 24 hours. Downloads require your account and a signed link. Saved documents remain until you delete them.

Can I use it on my phone?

Yes. Choose files from your phone and use the same options. Larger documents work best on a desktop.