MeNew Sheet
A free spreadsheet editor that runs in your browser — open, edit and save XLSX and CSV files without uploading them anywhere.
🔒 Runs entirely in your browser — your files are never uploaded to any server.
About this tool
MeNew Sheet opens Excel-format workbooks (.xlsx, .xls, .csv) directly in your browser. You can edit cells, use formulas, apply formatting, merge cells, work across multiple sheets, and save the result back as a real .xlsx or .csv file.
Everything happens locally: the file you open is read by your browser and never uploaded to a server. Very complex workbooks — charts, macros, pivot tables — are beyond what a lightweight web editor can reproduce, but core data, formulas and layout are preserved.
How to use: double-click a cell (or just start typing) to enter data, and start with = for formulas like =SUM(B2:B10). The toolbar covers fonts, colors, borders, merging and number formats, and the tabs at the bottom switch between sheets. Open ▸ pick a file ▸ edit ▸ Save XLSX.
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