Excel and CSV import
Read CSV and the first sheet of an XLSX workbook, up to 100 rows and 25 columns.
ON-DEVICE FILE TOOLS · NO SIGNUP
Spreadsheet editor for Excel and CSV
Free browser spreadsheet editor for CSV and the first XLSX worksheet. Edit cells and export as CSV or Excel.
Open this tool →Change cell values
Edit text and numbers, add rows and columns, and save locally.
Download XLSX or CSV
Export cell values to spreadsheet formats and optionally share the result.
Limits you should know
Macros, charts, formulas, cell styling and multi-sheet fidelity are not supported.
Accuracy and privacy
MallowShare edits files in your browser until you choose to share them. Keep your original file and review the new output carefully. These compact tools are not professional document-repair, cryptographic protection, or full Office-layout engines. Compatibility depends on your browser and file type.
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