About this conversion
Convert TSV to CSV when you need to import tabular data into a tool that defaults to comma-separated values. Excel, Google Sheets, and many BI tools assume CSV; some bioinformatics and command-line tools default to TSV. The conversion is the standard bridge between the two ecosystems.
When this conversion is useful
- Loading a TSV from a Unix pipeline into Excel or Google Sheets
- Sharing tabular data with collaborators on a CSV-default workflow
- Importing into a database or BI tool whose import wizard expects CSV
- Standardising data exports across teams that use different conventions
Quality and tradeoffs
Tabs become commas. Cells that contain commas, quotes, or newlines are properly quoted in the CSV output to avoid breaking the format. Numeric and date data passes through unchanged — it's just the delimiter that changes.
Frequently asked questions
What if my TSV cells contain commas?
Those cells are wrapped in double quotes in the CSV output. That's the standard way CSV handles fields that contain the delimiter character.
Will the CSV open identically in Excel as the TSV did?
Yes — same data, different delimiter. Numbers, dates, and text all behave the same. The only difference is the file format Excel uses to parse it.
Is data ever lost in the conversion?
No. The conversion is purely a delimiter swap with proper quoting. Round-trip TSV → CSV → TSV produces the identical original file.