When you build an app with Xcode, your .xcassets folders are compiled into binary .car files that ship with your application. . . . The “CAR” extension likely stands for “Compiled Asset Record” based on method names found in Xcode’s IBFoundation framework.
The article is well worth reading even without ingesting the specifics in order to follow the author's reverse engineering process.
alt Hacker News
When you build an app with Xcode, your .xcassets folders are compiled into binary .car files that ship with your application. . . . The “CAR” extension likely stands for “Compiled Asset Record” based on method names found in Xcode’s IBFoundation framework.
The article is well worth reading even without ingesting the specifics in order to follow the author's reverse engineering process.