Convert Spreadsheets
Convert your spreadsheets between XLSX, XLS, CSV and ODS.
Accepted source formats
Available output formats
How it works
Upload
Drag and drop or select your files to convert
Configure
Choose the output format and options
Download
Get your converted files instantly
Common mistakes
- Using a source file of poor quality.
- Publishing without checking the final result.
- Confusing file size, dimensions and quality.
- Overwriting the original file without keeping a copy.
Pro tips
- Always keep an original version.
- Test several settings before downloading.
- Use WebP for the web when possible.
- Choose descriptive file names for SEO.
Privacy guaranteed
Your files are processed locally in your browser and are never uploaded to our servers.
Adapt your files to your needs
Prepare your files for the web, emails, professional documents or online sharing. Processing happens directly in your browser, fully private and with nothing to install.
Practical formats for everyday work
Choose the formats best suited to your needs: publishing, archiving, printing, collaboration or quick sharing. Processing happens directly in your browser, fully private and with nothing to install.
Free tool, no signup required
Use the tool for free, with no account, no email required and no unnecessary steps. Processing happens directly in your browser, fully private and with nothing to install.
Secure, private processing
Your files stay on your device and are processed locally. No file is ever sent to a remote server. Processing happens directly in your browser, fully private and with nothing to install.
Save time on all your files
Keep a simple workflow: add your files, choose your settings, then download the final result. Processing happens directly in your browser, fully private and with nothing to install.
Discover all our tools
Convert, compress, merge and edit your files in a few clicks.
Complementary tools
Guides and tutorials
Learn how to use our tools with our detailed guides.
How to convert a spreadsheet file to spreadsheet? online
Convert your spreadsheet files to spreadsheet for free, online, no signup or installation. Change file extension fast, in batch, directly in your browser.
How to convert a spreadsheet file to spreadsheet? online
Convert your spreadsheet files to spreadsheet for free, online, no signup or installation. Change file extension fast, in batch, directly in your browser.
How to convert a spreadsheet file to spreadsheet? online
Convert your spreadsheet files to spreadsheet for free, online, no signup or installation. Change file extension fast, in batch, directly in your browser.