.DEF File Overview

File Extension:	DEF
File Type Description:	Module Definition File
File Type Developer:	Microsoft Corporation
Primary Associated Software:	Microsoft Visual Studio
Primary Software Developer:	Microsoft Corporation

Open your files with FileViewPro File Viewer

Download File Opener

DEF

Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Home File Types Developer Files DEF

What is File Extension DEF?

Module Definition File files were originally developed by Microsoft Corporation for the Microsoft Visual Studio software application. Visitor data analysis shows that these Module Definition File files are typically seen on Windows 10 user machines from China. Statisically, these users are most likely running the Google Chrome internet browser.

Associated Developers and Software

	Microsoft Visual C++ by Microsoft Corporation
	IObit Malware Fighter by IObit
	Elecbyte M.U.G.E.N by Elecbyte
	SmartWare II by SmartWare Corporation
	Microsoft Visual Studio by Microsoft Corporation

Top DEF User Languages

Top DEF File User Browsers

Desktop Friendly?

Mobile Friendly?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac
	Linux

Other File Types Related to DEF Files

Extension	File Type Developer	File Category	File Type Description
.SHP	Autodesk, Inc.	3D Image Files	AutoCAD Shape File
.PPS	Microsoft Corporation	Data Files	PowerPoint Slide Show
.CPF	IBM	Data Files	Cognos Project File
.W98	Microsoft Corporation	Data Files	Microsoft Windows 98 Related Data
.DBL	Microsoft Corporation	System Files	Microsoft Windows XP Product Activation Data
.XLD	Microsoft Corporation	Database Files	Excel Database File
.AX	Open Source	Plugin Files	DirectShow Filter
.FOL	SoftKey	Database Files	PFS First Choice Database File
.VSMDI	Microsoft Corporation	Data Files	Microsoft Visual Studio Test Metadata
.STF	Microsoft Corporation	Data Files	Exchange 2000 Server Temporary File