Blender is lack of native FBX support, when we import some older and newer FBX files, it often fails.
So I made a better FBX importer and exporter with official FBX SDK from scratch.
The add-on is compatible with all FBX versions, from ASCII to binary, from FBX 5.3 to FBX 2020.
I have tested the importer and exporter with about one hundred commercial FBX files which made by 3d digital artists in 3ds Max, Maya or Cinema 4D, the add-on can import and export these FBX files successfully.
The exported FBX and DAE files have been verified in Unity Engine 2019, Unreal Engine 4/5 and Godot Engine v3.2 with no issues.
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.