There are 2 other file types using
the ST4 file extension!

empty icon.st4 - Pinnacle Studio 400 project file

st4 icon.st4 - SPICE Status file

Detailed description

Software that works with st4 file extension

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ST4 file - SBIG CCD Camera ST-4 image

What is st4 file? How to open st4 files?

File type specification:

Digital camera RAW file type icon Digital camera RAW file type

st4 file icon: st4 filetype icon

Santa Barbara Instruments Astronomical Image. File extension used by SBIG CCD Camera ST-4 for RAW images.

The default software associated to st4 file type:

XnView MP icon

Pierre-Emmanuel Gougelet logoXnView MP  Multiplatform software

Company or developer:
Pierre-Emmanuel Gougelet

A free (for non-commercial purposes) powerful cross-platform media browser, viewer and converter. Compatible with more than 500 formats and also supports export to 70 different file formats. It works on Windows, Linux and macOS (OS X).

Help how to open:

Generally you need a specialized digital photo editing software to process a RAW photo image and create from it a viewable picture format like JPG.

How to convert:

The very same programs that process digital RAW files can export them to typical photo formats like JPG.

List of recommended software applications associated to the .st4 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open st4 file, edit st4 file, convert st4 file, view st4 file, play st4 file etc. (if exist software for corresponding action in's database).

  • View st4 file

st4 file viewer - programs that view st4 file - SBIG CCD Camera ST-4 image

Programs supporting the exension st4 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about XnView MP for view st4 file action.


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