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Sehnna

Excel Converter

Convert to and from Excel spreadsheets. Get tables out of PDFs, open CSV files correctly, or turn workbooks into PDF and CSV – privately, in your browser.

Your files stay on your device. Conversions run in your browser.

Convert to Excel

PDF to Excel

Extract tables and text from a PDF into an editable Excel spreadsheet.

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CSV to Excel

Open CSV data as a proper Excel XLSX file with columns and numbers.

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Convert from Excel

Excel to PDF

Turn XLSX or XLS spreadsheets into a clean, easy-to-share PDF.

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Excel to CSV

Export XLSX or XLS sheets to simple CSV files for any app.

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About the file formats

Excel (XLSX and XLS)
XLSX is the modern Excel spreadsheet format (Excel 2007 and newer); XLS is the older format. Both store data in rows, columns and sheets, and open in Excel, Google Sheets, LibreOffice and Numbers.
CSV (Comma-Separated Values)
CSV is a plain-text table where each line is a row and values are separated by commas, semicolons or tabs. It is the universal import and export format for shops, banks and databases.

XLSX, XLS or CSV – what's the difference?

  • XLSX: the modern Excel format. Supports several sheets, formatting and formulas. Best for working with data.
  • XLS: the older Excel format (Excel 97–2003). Still readable everywhere, but larger and more limited.
  • CSV: plain text with one row per line. No formatting or sheets, but every program can import it.

Spreadsheets with sensitive data stay private

Salary lists, customer data and financial reports should not be uploaded to unknown servers. Sehnna converts spreadsheets in your browser, so your data never leaves your device.

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Privacy: your files stay on your device

Your files stay on your device. Conversions run in your browser. Sehnna never uploads, stores or reads your documents – there is no server that receives them, no account and no email address.

  • Your files stay on your device
  • No signup required
  • Browser-based conversion
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Excel Converter – frequently asked questions

Which Excel formats are supported?

XLSX and XLS files can be converted to PDF and CSV. PDF and CSV files are converted to XLSX.

Do I need Microsoft Excel?

No. All conversions run in your browser without Excel installed.

Are my spreadsheets uploaded?

No. Your files stay on your device. Conversions run in your browser.

Can I convert Excel to Google Sheets?

XLSX files open directly in Google Sheets. Just upload the converted XLSX file to your Google Drive and open it.