SuperCard trial project
File type: Various data file
A .st45 file is a project file created by the trial version of SuperCard.
It stores a project for use with the SuperCard development tool.
File type category:
Various data file
Date updated: October 9, 2026
SuperCard is an integrated development tool for Apple macOS, Mac OS X and Mac OS Classic. The .st45 file extension identifies projects saved by its trial version.
The file contains a SuperCard project and its associated project data. It is intended to be opened and edited in SuperCard.
Open the .st45 file with SuperCard on macOS or Mac OS X. Use the trial version of SuperCard if the project was created with that version.
Software applications that can open st45 files:
Apple macOS / Mac OS X
Software applications that can edit st45 files:
Apple macOS / Mac OS X
Software capable of saving st45 files:
Apple macOS / Mac OS X
Software apps that create st45 files:
Apple macOS / Mac OS X
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