An st3 file extension is related to the SPICE developed by National Instruments Corporation and used for its status files.
There are 2 other file types using
the ST3 file extension!
.st3 - SimCity 3000 starter town city file
.st3 - Star 3 MIDI karaoke data
Detailed description
Software that open st3 file
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What is st3 file? How to open st3 files?
The st3 file extension is associated with SPICE (Simulation Program with Integrated Circuit Emphasis), a software for Microsoft Windows operating system distributed as a part of Multisim suite.
The st3 files are used for status files.
The default software associated to open st3 file:
Spice 
Company or developer:
National Instruments Corporation
A computer simulation and modeling software, SPICE is used by engineers to mathematically predict the behavior of electronics circuits.
Help how to open:
Use SPICE to work with *.st3 files.
How to convert:
As far as we know, this .st3 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.
List of software applications associated to the .st3 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 st3 file, edit st3 file, convert st3 file, view st3 file, play st3 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting st3 files.
Software that open st3 file - SPICE status data
Programs supporting the exension st3 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Spice for open st3 file action.
Programs that can create st3 file - SPICE status data
Programs supporting the exension st3 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Spice for create st3 file action.
Unspecified and all other actions for computer programs working with st3 file - SPICE status data
Click on the software link for more information about Spice. Spice uses st3 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
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