.SIG File Overview

File Extension: SIG
File Type Description: Signature File
File Type Developer: Unknown Developer
Primary Associated Software: Microsoft Outlook Express
Primary Software Developer: Microsoft Corporation

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What is File Extension SIG?

Signature File files were originally developed by Microsoft Corporation for the Microsoft Outlook software application. Our data shows that SIG files are frequently utilized by PC users in United States and popular on the Windows 10 platform. A high percentage of these users browse the web using Google Chrome.

Associated Developers and Software

QUALCOMM Eudora by Qualcomm
Microsoft Outlook Express by Microsoft Corporation
Broderbund PrintMaster v7 Platinum by Broderbund
Microsoft Outlook by Microsoft Corporation
Duxbury MegaDots by Duxbury Systems
Microsoft OneNote by Microsoft Corporation
Duxbury QuickTac by Duxbury Systems
Duxbury Braille Translator by Duxbury Systems

Top SIG User Languages

Top SIG File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular SIG File Countries

Top User Operating Systems

Windows 10 Windows 11 Windows 6 Windows 8.1

Associated Operating Systems

Windows Phone

Other File Types Related to SIG Files

Extension File Type Developer File Category File Type Description
.IBD Oracle Corporation Database Files MySQL InnoDB Database Table
.INF Parametric Technology Corporation Temporary Files Pro/ENGINEER Temporary
.VDX Microsoft Corporation Data Files Visio Drawing XML File
.GLY Microsoft Corporation Data Files Word Glossary File
.FLM Image-Line Audio Files FL Studio Mobile Song File
.RGB Silicon Graphics, Inc. Raster Image Files RGB Bitmap
.JWL Roxio Raster Image Files Roxio Jewel Case File
.CAP Microsoft Corporation Data Files Network Monitor Packet Capture Data File
.CSD Valve Game Files Steam Game Data Backup File
.JOB Metamation CAD Files MetaCAM Nest Job File

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