.zip
file./Users/<user>/Library/Application Support/StarUML/extensions/user
for Mac OS.C:\Users\<user>\AppData\Roaming\StarUML\extensions\user
for Windows.~/.config/StarUML/extensions/user
for Linux.main.js
file in the folder./Users/<user>/Library/Application Support/StarUML/extensions/user
for Mac OS.C:\Users\<user>\AppData\Roaming\StarUML\extensions\user
for Windows.~/.config/StarUML/extensions/user
for Linux.