Known ST4 Files

Dominant ST4 File Type

.ST4

File Format:	.st4
Type:	Pinnacle Studio 400 Project File

The ST4 file suffix is related in an earlier version of Pinnacle Studio, a software for video editing. This file mainly contains projects for the software.

Created by:	Corel Corporation
File Category:	Video Files
Key:	HKEY_CLASSES_ROOT\.st4

Software Programs That Open The Pinnacle Studio 400 Project File:

Pinnacle Studio by Corel

Windows

Other ST4 File Associations

.ST4

File Format:	.st4
Type:	SBIG CCD Camera ST-4 Image

ST4 file extension is associated with SBIG CCD Camera ST-4. Santa Barbara Instruments Group (SBIG) is prominent in the field of astronomical cameras. The ST4 file contains raw images.

Created by:	XnSoft
File Category:	Camera Raw Files

Software Programs That Open SBIG CCD Camera ST-4 Image Files:

XnView MP by XnSoft

Compatible with:

Windows

Mac

Android

Linux

.ST4

File Format:	.st4
Type:	SPICE Status Data

This ST4 file is a data file associated with SPICE (Simulation Program with Integrated Circuit Emphasis). Specifically, these ST4 files are used as a status data file.

Created by:	National Instruments
File Category:	Data Files

Software Programs That Open SPICE Status Data Files:

Spice by National Instruments

Compatible with:

Windows

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Sources of ST4 Problems

Frequent ST4 Opening Issues

Pinnacle Studio Disappeared

When you double-click your ST4 file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". Generally, this is experienced in %%os%% because Pinnacle Studio isn't installed on your PC. You won't be able to double-click to open your ST4 because your OS doesn't know what to do with it.

Tip: When you have another program installed that you know will open your ST4, you can select it from the other programs listed (see "Show Apps").

Pinnacle Studio is Out-of-Date

Your Pinnacle Studio 400 Project File file is incompatible with Pinnacle Studio because you might have the wrong version installed. You will need to download a newer version of Pinnacle Studio if you don't have the right version. This issue mainly occurs when your Pinnacle Studio 400 Project File file was created by a newer version of Pinnacle Studio than you have on your PC.

Tip: Find clues on the correct software version by right-clicking your ST4 file and clicking "Properties".

Summary: In either case, the majority of problems opening ST4 files are related to not having the correct software application installed on your computer.

Other ST4 File Opening Causes

In the majority of cases, installing the right version of Pinnacle Studio will resolve your issue. If you are still having problems opening ST4 files, there may be other issues that are preventing you from opening these files. Other contributing causes:

• Invalid ST4 file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the ST4 file in the Windows registry
• Incomplete or bad installation of a software application associated with the ST4 format
• Your ST4 can't be loaded properly (file corruption)
• Your ST4 has adversely impacted by malware
• ST4-related hardware has device drivers that obsolete
• Windows has inadequate resources to open your Pinnacle Studio 400 Project File file