File Extension Library

.STG File Extension

  • Developer by: Microsoft
  • Category: Backup Files
  • Format: Binary

What are .STG files and how to open them?

Can't open .STG file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .STG file.

What is a .STG file extension?

.STG file extension is created by Microsoft. .STG has been classified as Backup Files. The format of .STG file is Binary.

.STG is ActiveSync Backup File

Backup created by ActiveSync, a program used to synchronize PCs with mobile devices; contains a backup of all mobile device files, including contacts, notes, and calendar data; typically seen with the filename backup.stg.

NOTE: Microsoft removed the backup and restore feature beginning with ActiveSync version 4.2. To recover backup files with ActiveSync, use version 4 or an earlier version that is compatible with STG files.

List of all softwares that can open the ActiveSync Backup File
Microsoft ActiveSync

How to fix problems with .STG files

  1. You need to update the application that you normally use to open .STG files. Only the latest version of the software supports the current .STG file format
  2. You need to check the .STG file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)