Packaged Activity

File Format
Name	Packaged Activity
Ontology	Electronic File Formats Archiving Packaged Activity
Extension(s)	.apk
Developed By	Kuju Entertainment
Released	2001

A Packaged Activity is an archive containing the necessary files to install a new scenario in Microsoft Train Simulator. The files are stored uncompressed along with their paths relative to the game's installation directory.

Software

• Microsoft Train Simulator ships with a tool to extract a Packaged Activity under UTILS\TSUnpack.exe, but this tool is unreliable and led to multiple reimplementations
• OpenRails, an open-source clone of Microsoft Train Simulator
• msts2zip, an online converter from APK to ZIP
• tsunpack-csharp

Links

• Unofficial format specification