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XLS file extension

The table below provides useful information about the .xls file extension. It answers questions such as:

  • What is the .xls file?
  • What program do I need to open a .xls file?
  • How can the .xls file be opened, edited or printed?
  • How can I convert .xls files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Excel Worksheet

XLS file is a Microsoft Excel worksheet. Microsoft Office Excel is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X.
Category: Document files
Application: Microsoft Excel
Mime-type: application/vnd.ms-excel
Magic number: -
Magic string: -
Sample: -
XLS aliases:
excel, xl
XLS related links:
XLS related extensions:
Comma-Delimited ASCII File

Comma-Separated Values

ClarisWorks Document

Data Interchange Format

Microsoft Word Document

Microsoft Graph Chart

Lotus Word Pro Document

Microsoft Word for Macintosh Document

Data Interchange Format

Microsoft PowerPoint Presentation

Other types of files may also use the .xls file extension.

🚫 The .xls file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

als, cls, dls, ls, lxs, sls, x1s, xis, xks, xl, xl5, xlc, xle, xlw, xlx

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Java Class Data
XML Paper Document
DB/TextWorks Exported Set Definitions
XoloX File
SAP BO Xcelsius Add-On Package
XBLite Source Code
Chiasmus Key File
Age of Empires III AI Settings
Hummingbird Exceed Startup File
LPEX Save Macro

🔴 Can't open a .xls file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .xls file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .xls file extension, write to us!

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