Reverse Engineering Unknown File Formats with ImHex
Summary
This post demonstrates how to reverse engineer a game save file format using ImHex, exposing patterns for decoding binary data, including Windows FILETIME, 7-bit encoded ints, lists, and enums. It maps C# serialization to a Pattern Language (fez.hexpat) to decode and document the data, highlighting a workflow from identifying the save file to generating patterns and validating compatibility.