All file extensions
.CSV File
What is it?
CSV (comma-separated values) is a plain-text format for tabular data — each line is a row, values separated by commas — widely used for exporting and importing spreadsheet and database data.
How do I open it?
Opens in Excel, Google Sheets, LibreOffice Calc, or any text editor.
Is it safe?
Yes, CSV is plain text and can't run code, though opening one in Excel can occasionally trigger unwanted auto-formatting of values like dates — a formatting quirk, not a security risk.
Can I delete it?
Safe to delete once no longer needed.