CSV converter
Convert your CSV files to any format.
What is a CSV file?
CSV is the universal data format — plain text rows and commas that every spreadsheet app, database and script can read.
First released in 1972 by IBM (early usage); standardized informally over decades, it uses lossless compression and no transparency, which makes it best suited to raw tabular data — imports, exports and data pipelines.
Drop a CSV file below to see every available conversion. Files are processed server-side using LibreOffice and deleted immediately after — never stored.
Advantages of the CSV format
Universally readable
Being plain text, a CSV opens in any spreadsheet app, text editor, database or programming language with zero setup.
Tiny file size
No formatting, formulas or styling — just raw values — so CSVs stay small even with thousands of rows.
Ideal for automation
Scripts and data pipelines parse CSV trivially, making it the standard interchange format for imports and exports.
Convert CSV to…
Pick a target format — your CSV file will be converted server-side using LibreOffice.
CSV: frequently asked questions
Will formulas and formatting survive in a CSV?
No — CSV stores only raw values as plain text. Formulas, colors, fonts and multiple sheets are all discarded.
Why does my CSV look wrong in Excel?
Regional settings sometimes expect a semicolon instead of a comma as the separator, or a different text encoding. Opening via 'Import' rather than double-clicking usually fixes it.
Can a CSV hold multiple sheets?
No — CSV represents a single flat table. Convert to XLSX if you need multiple sheets in one file.
Is CSV the same as a spreadsheet?
Not quite — it's the data a spreadsheet holds, stripped of everything else. Think of it as the universal export/import format spreadsheets and databases use to exchange data.