Question 1

How does the View Any File XLSX Viewer & Opener work?

Accepted Answer

This tool uses a JavaScript library (SheetJS) to parse .xlsx files directly in your browser. It then displays the data from the first sheet of the workbook as an HTML table.

Question 2

Is my uploaded .xlsx file secure?

Accepted Answer

Yes. File processing happens entirely within your web browser. Your spreadsheet data is not uploaded to any external server, ensuring your privacy.

Question 3

Will formulas, charts, and complex formatting be displayed from my .xlsx file?

Accepted Answer

This viewer focuses on displaying the raw data from the cells. Formulas will typically show their calculated values, not the formulas themselves. Charts, complex formatting, macros, and multiple sheets are not currently supported by this viewer. It's designed for a quick data preview of the first sheet.

Question 4

What if my .xlsx file has multiple sheets?

Accepted Answer

Currently, this viewer will only display the data from the *first* sheet in the .xlsx workbook.

Question 5

Are older .xls files or .csv files also supported?

Accepted Answer

Yes, for legacy .xls files, please use our dedicated XLS Viewer (link to /viewer/xls). For .csv files, use the CSV Viewer (link to /viewer/csv). This page is optimized for modern .xlsx files.

View Any File - XLSX Viewer

XLSX File Online Viewer & Opener FAQs