Convert TSV to XLSX online in seconds — free, with no sign-up. XLSX is lossless and ideal for data, calculations and shared spreadsheets. Your files are encrypted and deleted automatically after 24 hours.
XLSX
Microsoft Excel — Excel's format storing sheets, formulas and charts as XML.
How to convert TSV to XLSX
- 1Upload your TSV file
Click “Choose a file” or drag and drop your TSV file onto the page — no sign-up or email needed.
- 2Convert to XLSX
XLSX is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your XLSX file
Your XLSX file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
Frequently asked questions
Does converting TSV to XLSX lose quality?
Converting TSV to XLSX keeps your content intact. We use high-quality defaults so your XLSX file looks as close to the original as the format allows.
Is the TSV to XLSX converter free?
Yes — converting TSV to XLSX is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my TSV files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert TSV to XLSX on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert TSV to XLSX?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert TSV files to?
Besides XLSX, you can convert TSV to CSV, JSON, YAML and more — see the full list of TSV conversions below.
Other conversions
Last updated July 2026