How to use
- Open CSV and Excel Converter and review the inputs below.
- Choose files from your device.
- Adjust the options, then press Run or Calculate. Interactive tools show their own start controls in the result area.
- Review the result. Use the copy or download control when it is available.
Inputs and starting values
| Input | Starting value / example | Available options |
|---|---|---|
| Choose file | Choose a local file |
Things to check
CSV → XLSX, and each XLSX sheet → CSV in a ZIP. Formulas are not run; formatting, charts and macros are not kept.
The starting values are examples, not recommendations. Check the units and replace them with your own values.
Frequently asked questions
Are my inputs and files uploaded?
The tool processes inputs in your browser without uploading them. Browser storage, microphone or sensor permissions are described by the tool when applicable.