Choose xlsx from your device or use the available text controls.
Files stay on your device
XLSX Viewer
Inspect worksheet values from an XLSX workbook and switch between sheets locally.
Private browser workspaceInput: XLSX → Output: Worksheet values
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Your file never leaves this browser
Processing happens locally using browser APIs and on-device code. Closing this tab clears the working data.
How it works01 02 03
Done in three simple steps
Choose the available options and process the input locally.
Inspect the result using the viewer controls.
Frequently asked questions
Does it reproduce Excel formatting and recalculate formulas?+
No. This is a worksheet-value viewer. Charts, cell styling and number display formats are not rendered; a formula without a cached value appears blank.
Are my files uploaded?+
No. Processing happens on this device. The tool may download its own code, but source files and output are not sent to a processing server.