CSV editor

Open a CSV file in a real online spreadsheet: delimiter detected automatically, accents preserved, save as UTF-8 CSV or Excel. Free, no sign-up.

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Double-click a cell to edit it, type = to start a formula.The draft is kept in this browser

How to edit a CSV file

Click Open and pick your CSV or TSV file: comma, semicolon or tab delimiters are detected automatically.
Edit, sort, add rows or columns, use formulas if needed.
Click Save → CSV (UTF-8, Excel-friendly) or Excel (.xlsx).

A real spreadsheet: Multiple sheets, copy and paste from Excel or Google Sheets, fill down, insert and delete rows and columns, merge cells, freeze panes, undo/redo.
Formulas and formats: Over 400 functions (SUM, AVERAGE, IF, VLOOKUP, COUNTIF…) recalculated live. Number, date, currency and percentage formats; fonts, colors, borders, alignment, text wrapping.
Open your files: XLSX and CSV open right in your browser. XLS and ODS are first converted on our server, then deleted. Values, formulas, formatting, merges, widths and frozen panes are kept; charts, images and comments are not.
Save as Excel, CSV, ODS or PDF: Excel (.xlsx) with formulas and formatting, UTF-8 CSV that Excel reads correctly, OpenDocument (.ods) or PDF.
Private, no sign-up: Your data stays in your browser: the spreadsheet is saved automatically on this device. Only opening XLS/ODS and exporting to ODS/PDF go through our server, just for the conversion.