How to open a .csv file: without installing anything

How to open a .csv file

A .csv is a CSV file: A table as plain text. Every spreadsheet and database speaks it. Excel, Google Sheets, Numbers, LibreOffice Calc, any text editor open it. Or drop it below: it opens and converts in your browser, nothing to install.

Drop files here or click to chooseSeveral files at once are fine.

🔒 Nothing is uploaded. Check the Network tab of your browser: it stays empty.

Three ways to open it

Drop the .csv file above: it opens and converts right here, nothing to install.
For a desktop app: Excel, Google Sheets, Numbers, LibreOffice Calc, any text editor.
If it still will not open, convert it to TSV, that is what most people are really after.

Convert a .csv

CSV → TSV CSV → XLSX CSV → XLS CSV → ODS CSV → JSON CSV → NDJSON CSV → YAML CSV → XML

Questions

What program opens a .csv file?

Excel, Google Sheets, Numbers, LibreOffice Calc, any text editor. Or drop it here, without installing anything.

Why won't my .csv open?

Either the viewer does not know CSV (a table as plain text. every spreadsheet and database speaks it.), or the file is damaged or misnamed. Converting to TSV fixes the first case.

Is it safe to open a .csv here?

Yes: the file is read in your browser and never leaves your device.