Question 1

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

Accepted Answer

This tool uses a JavaScript library (SheetJS) to parse .xls 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 .xls 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 .xls file?

Accepted Answer

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

Question 4

What if my .xls file has multiple sheets?

Accepted Answer

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

Question 5

Are modern .xlsx files also supported?

Accepted Answer

Yes, for modern .xlsx files, please use our dedicated XLSX Viewer (link to /viewer/xlsx) for optimal compatibility. This page is tailored for legacy .xls files.

View Any File - XLS Viewer

XLS File Online Viewer & Opener FAQs