Gorilla Excel Viewer

View Excel spreadsheets online without installing Microsoft Office. Drop any .xlsx, .xls, .csv, or .tsv file into this tool and browse your data instantly — switch between sheets, sort by any column, and search across all rows. Unlike online viewers that upload your files to a server, this tool processes everything locally in your browser. Your spreadsheet data never leaves your device.

Can I open Excel files without Microsoft Office?

Yes. This tool opens .xlsx and .xls files directly in your browser using a client-side spreadsheet engine. No Office, no plugins, no installation — just drop your file and view it instantly. Works on Windows, Mac, Linux, and mobile devices.

Is my Excel file uploaded to a server?

No. The file is processed entirely in your browser using JavaScript. Your spreadsheet data never leaves your device — no server, no cookies, no tracking. Safe for financial data, customer lists, and sensitive business information.

What file formats are supported?

This viewer supports .xlsx (modern Excel), .xls (legacy Excel 97-2003), .csv, .tsv, and .ods (OpenDocument). Multi-sheet workbooks are fully supported with tab navigation.

Can I sort and search the data?

Yes. Click any column header to sort ascending or descending. Use the search bar to filter rows by keyword across all columns. You can also switch between sheets in multi-sheet workbooks.