Free TSV to XLS converter

Why convert TSV to XLS?

People convert TSV to XLS because a TSV is plain text split by tab characters, which almost nobody recognises as a spreadsheet, while XLS is what older Excel installations and legacy business systems still require.

How to convert TSV to XLS

1. Choose your TSV file. Drop it on the box above, or tap to browse. You can pick several files at once.
2. Confirm the target is .xls. It is preselected when your browser can encode it; otherwise the closest available target is chosen. Adjust quality, size or the other options if you want to.
3. Convert and download. Press Convert, then Download. Your file stays on your device the whole time.

What is a .tsv file?

TSV is CSV with tabs instead of commas, which sidesteps the classic problem of values that themselves contain commas. It is common in bioinformatics, log processing and anywhere data is piped between Unix tools.

What is a .xls file?

XLS is the old binary Excel format, used from 1997 to 2003 and still produced by plenty of legacy systems and bank exports. Excel still opens one, but it caps out at 65,536 rows, which modern data regularly exceeds.

What to expect from this conversion

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook.

Is it private?

Yes, by design. Every conversion happens inside your own browser using your device’s processor — there is no server that receives your TSV file, so there is nothing for anyone to store, scan or leak. You can confirm it yourself: open your browser’s developer tools, watch the Network tab while you convert, and you will see no upload.

Questions about TSV to XLS

Is this TSV to XLS converter free?

Yes, completely. There is no account, no daily limit, no watermark and no premium tier.

Is my TSV file uploaded to a server?

No. The conversion runs inside your own browser using your device's processor. The file is read from your disk, converted in memory and saved back to your disk — nothing is transmitted, so there is nothing for anyone to store.

Can I convert TSV to XLS online without downloading software?

Yes. This is an online TSV to XLS converter that runs in your browser, so there is nothing to install and no app to trust with your files. It works the same on a phone.

What happens to the quality?

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook.

Can I convert several TSV files at once?

Yes. Select as many files as you like and they are converted one after another in a single tap, with a download for each and a zip of all of them.

Can I convert TSV to XLS without Python or a script?

Yes — that is what this page is for. Python does the same job well if you already have it set up and thousands of files to process; for one file, or a handful, the browser is faster than installing anything.

Should I keep the original TSV file?

Yes — keep it, converting never touches it. The reason to make a copy in another format is that a TSV is plain text split by tab characters, which almost nobody recognises as a spreadsheet.

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