Local XLSX tools
Extract data from an Excel sheet
Convert Excel workbooks to CSV or JSON online. Choose your sheet, convert multiple files and download each result. No account required.
Convert your workbooks
Add as many files as you need. Up to 128 MiB per file. Keep this tab open until your downloads finish.
Sheet and conversion options
The first sheet is used by default. Options apply when each file starts. Exported values use stored formula results; formatting and workbook features are not included. SQL columns use TEXT by default to preserve identifiers. Choose another type only for cells of that actual type.
Conversion starts as soon as you choose files. Files download automatically when ready. Your browser may ask to allow multiple downloads.
Take one worksheet into another tool
Choose a sheet and export its tabular data as CSV or JSON without converting every sheet.
For example, extract an Inventory sheet from a workbook that also contains instructions and a summary.
How it works
- Choose the sheet and CSV or JSON output in Sheet and conversion options before choosing files.
- Choose one or more XLSX workbooks to start converting automatically. Follow each file’s progress.
- Downloads start when ready. Use View for a preview or Add more files to add another batch.
Output and limitations
This extracts sheet data, not a source-preserving XLSX worksheet. Formulas become stored results and workbook formatting is not included.
Keep a copy of your original workbook and review downloaded results before using them.
Frequently asked questions
Will the extracted file still be an Excel workbook?
No. This tool downloads the selected sheet as CSV or JSON. Use Split workbook data for new values-only XLSX files.
Are other worksheets included?
No. The export contains the selected worksheet data. Choose another sheet to create another export.
Is my workbook uploaded to a server?
The anonymous browser file tools process workbook contents locally. The website still makes ordinary requests for pages and sample files. Read the privacy page for details.
Which Excel files can I open?
Choose XLSX files with a combined size of 128 MiB or less. Legacy XLS files and password-protected or encrypted workbooks are not supported.