Convert TSV to XLSX
TSV is CSV with tabs between the columns — the format of choice for analytics exports, database dumps and research data. Turn it into an XLSX workbook in one go.
- Your file never leaves your device
- Free
- No sign-up
How to convert TSV to XLSX
1Choose the file
Files ending in .tsv or .txt with tab-separated columns work.

2Check the encoding
If characters look wrong in the preview, pick the encoding from the list.

3Download the workbook
Numbers and dates arrive as real values, ready for formulas and sorting.
Why tabs are handy
Tabs almost never appear inside data, so TSV columns stay aligned even when the text is full of commas and semicolons. That is why analytics platforms and database clients like to export it.
Frequently asked questions
Is my file uploaded anywhere?
No. The spreadsheet is read and written by your browser, on your device. It only reaches Zotu's servers if you choose to save it to your cloud from the full editor.
Do I need an account or a subscription?
No. The tool is free and needs no sign-up. An account only adds cloud storage, so your workbooks follow you between devices and save themselves.
How is TSV different from CSV?
Only the delimiter: CSV uses commas or semicolons, TSV uses tabs.
Can I paste tab-separated text directly?
Yes, in the editor: copy the data and paste it into a cell — the columns split on tabs automatically.
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