Merge spreadsheets
Combine selected sheets from multiple files. Columns are matched by name, even when their order differs.
01 Choose files
Your file is ready.
Preview shows up to 8 rows. Review the result before use. Refreshing clears files and results.
How to use this tool
- 01
Add two or more files and choose a sheet from each.
- 02
Arrange the files and choose your output format.
- 03
Merge, review the preview, and save the result.
Before you start
What are the file limits?
Up to 20 files, 20MB each and 50MB total. Spreadsheets: 50,000 rows, 200 columns, 1 million cells. PDFs: 300 pages total. Images: 16 megapixels each. Your device may require smaller files.
Where are my files stored?
File contents are processed in browser memory, without uploads or persistent app storage. Closing or refreshing the tab clears the work; downloaded files remain on your device.
Will spreadsheet data change?
Original files are unchanged. Dates and numbers are exported as displayed text; formulas are not recalculated. Empty rows are omitted. CSV values starting with formula characters such as =, +, -, or @ may receive a leading apostrophe to prevent formula execution. The checker never fixes values or deletes duplicate rows automatically.