XLSX to TSV Converter
Convert a Microsoft Excel (.xlsx) file into tab-separated values. Upload a spreadsheet, pick a sheet, and get clean TSV output.
Click to upload an .xlsx file
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •TSV uses tabs instead of commas, so it's a safer choice than CSV when your data itself contains commas
- •If your workbook has multiple sheets, switch between them with the Sheet selector - each one converts independently
- •Formulas in the spreadsheet are converted using their last calculated value, not the formula text
- •Cell formatting (colors, fonts, borders) doesn't carry over to TSV, since it's a plain text format
- •The whole file is read and converted locally in your browser - nothing is uploaded anywhere
Most Popular
Most users convert the first sheet for import into spreadsheet tools or scripts that expect tab-delimited data
When to Use This Tool
Convert an Excel export into TSV for importing into a database or data warehouse tool that prefers tab-delimited input.
Use TSV instead of CSV when your spreadsheet data contains commas, since tabs are far less likely to appear inside cell values.
Turn spreadsheet data into TSV for scripts and tools (in Python, R, or elsewhere) that expect tab-separated plain text.
Share spreadsheet data with tools or platforms that don't support .xlsx but accept TSV, avoiding compatibility issues with Excel's binary format.
How It Works
Read the uploaded .xlsx file as binary data directly in your browser
Parse the file into a workbook using the SheetJS library, extracting all sheet names
Convert the selected sheet's cells into rows, calculating formulas to their last known value
Join columns with a tab character instead of a comma
Display the resulting TSV, ready to copy or download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by SheetJS (xlsx) for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
Can I convert a workbook with multiple sheets?
Yes. After uploading, use the Sheet selector to choose which sheet to convert. Each sheet is converted independently - you'll need to download each one separately if you need multiple sheets as TSV.
Why use TSV instead of CSV?
TSV uses tabs as the column separator instead of commas, which avoids ambiguity when your data itself contains commas (common with numbers formatted in certain locales, or free-text fields).
What happens to formulas in my spreadsheet?
Formulas are converted using their last calculated value (the value Excel stored when the file was saved), not the formula text itself, since TSV has no concept of formulas.
Is my spreadsheet uploaded to a server?
No. The entire file is read and converted locally in your browser using the SheetJS library. Your data never leaves your device.
Does formatting carry over to the TSV?
No. TSV is a plain text format with no support for colors, fonts, borders, or other visual formatting - only the cell values are preserved.