.XLS

.XLS file extension

This is the basic program to work with .XLS extension

Microsoft Office Excel Viewer

Microsoft Office Excel Viewer Microsoft Excel Worksheet

If you don’t have Microsoft Excel available in your computer you don’t have to worry, because with Microsoft Excel Viewer you’ll have the possibility to access to all the files created with Excel 2007, 2003, 2002, 2000 and 97. This program is a viewer, so it’ll allow you to see the files and print them, but it won’t allow you to edit the files created by Excel. .. (more)

The program works with the following extensions: xls, xlm, dif, csv, xlt, dqy, slk, xlr, xlw, iqy, oqy, rqy, xla, xlc, xlk, xll, odc, xlam, xltm, xltx, xlshtml and xlthtml

.XLS extension is also supported by the following programs:

Microsoft Excel Viewer

Microsoft Excel Viewer Microsoft Excel Worksheet

With Excel Viewer 97 can open, view, and print Excel workbooks.
Bytescout XLS Viewer

Bytescout XLS Viewer Bytescout XLS Viewer

View the contents of various types of spreadsheet files.
Firefox

Firefox Google Docs & Spreadsheets

Surf the Internet securely on an open-source web browser.
ThinkFree Office Calc

ThinkFree Office Calc

ThinkFree Calc is a new and innovative office tool.
Kingsoft Office

Kingsoft Office Microsoft Excel Document

Three full featured office applications: Writer, Spreadsheets and Presentation.
Microsoft Office Excel

Microsoft Office Excel Microsoft Excel Worksheet

Take your skills to the next level with tables, formulas, formatting and more.