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STG file extension

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

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

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

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

✅ Microsoft ActiveSync Mobile Device Backup

STG file is an Microsoft ActiveSync Mobile Device Backup. Microsoft Activesync comes with a backup/restore tool. The backup that ActiveSync makes goes to a file called backup.stg deep under your personal Documents and Settings folder.
STG format description not yet available
Category: Data files
Application: Microsoft ActiveSync
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
STG aliases:
STG related links:
STG related extensions:

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

🚫 The .stg file extension is often given incorrectly!

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

ctg, qtg, sfg, sg, sgt, shg, srg, st, stb, stf, sth, stn, str, stt, stv

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Atari ST Standard Floppy Disk Image
Neopaint Stamp
ALEID2000 Settings Data
Microsoft Setup Table File
Sony Playstation Video Stream
STELLA Runtime
DataPerfect Structural Information Data
dBASE Structure Object
WhereIsIt Catalog Group File

🔴 Can't open a .stg 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 .stg 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 .stg file extension, write to us!

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