Online Excel
Edit XLSX spreadsheets with formulas in your browser
Loading tool…
Nothing is uploaded — every step runs in your browser.
An Excel-compatible spreadsheet with nothing to install. Open .xlsx and .csv files and use 40+ formulas (SUM, IF, VLOOKUP, XLOOKUP, SUMIF…). Multiple sheets, sorting, inserting rows/columns, number formats, colours and freezing the top row are supported. Your spreadsheet is processed only on your device.
How it works
- 1Start with a blank sheet or click “Open” to choose an .xlsx or .csv file.
- 2Type into cells; start formulas with = (e.g. =SUM(A1:A10)). Copy-paste and Ctrl+D fill-down shift formulas automatically.
- 3Click “Save (.xlsx)” to download an Excel file, or export as CSV.
Frequently asked questions
Is my spreadsheet uploaded to a server?
No. All calculations run in your browser; the automatic draft is stored only on this device.
Which formulas are supported?
SUM, AVERAGE, MIN, MAX, COUNT, COUNTA, IF, IFERROR, AND, OR, SUMIF, COUNTIF, AVERAGEIF, VLOOKUP, HLOOKUP, XLOOKUP, INDEX, MATCH, ROUND, CONCAT, TEXTJOIN, LEFT, RIGHT, MID, TODAY and more. Cross-sheet references (Sheet2!A1) work.
Do formulas work when opened in Excel?
Yes. Formulas are written to the .xlsx in Excel’s own format.
Are charts and pivot tables available?
Not yet. Charts, pivot tables and conditional formatting are planned for later releases.