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Merge Excel files
Combine the first worksheet from multiple workbooks into one workbook.
A little guidance. A better result.
How to use Merge Excel Files
Preview per-file row counts and header mismatches before merging first sheets.
Prepare your input
Choose the workbooks or CSV files to combine.
Use the workspace
Review first-sheet row counts and any header mismatch warnings.
Check your result
Download and inspect the combined header and boundary between each source.
Know the limits
The merge uses first worksheets. It is not a relational join by key and does not merge every sheet automatically.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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