Yes. The selector order normally determines how files are added to the result.
Free online tool
Join workbooks by key online - Spreadsheets
Joins rows using key columns. Process XLS, XLSX, ODS online and download the result without changing the original.
Spreadsheets
What Join workbooks by key does
Joins rows using key columns. The tool validates the selected files and applies only the requested operation and settings. Files are processed in the displayed order to create one result or package.
Compatibility and limits
- Input formats
- XLS, XLSX, ODS
- Results
- XLSX
- Number of files
- Minimum 2, maximum 2
- Maximum total size
- 24 MB
FAQ
Frequently asked questions
Input supports XLS, XLSX, ODS and can produce XLSX. The selector rejects incompatible extensions before processing.
No. A new result is created and the uploaded file remains unchanged during temporary processing.