ExcelCraft
Free local-first online Excel editor—open and edit XLSX in your browser without uploading files.
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excelcraft.appAbout ExcelCraft
ExcelCraft is a free online Excel editor that opens and edits spreadsheets locally in your browser. Drop an XLSX, XLS, XLSM, XLSB, ODS, CSV or TSV file (up to 20 MB); the GridCraft engine processes it on your device with no upload and no required account. Edit cells and formulas with a familiar ribbon, then download a new copy. Optional Google sign-in saves preferences only—not Drive access or cloud workbooks. Charts and complex objects are still evolving; VBA macros are not executed.
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