Files with rsdk file extension can be typically found as game data from games made using ther Taxman's Retro-Engine SDK.
RSDK file extension - Taxman's Retro-Engine SDK data
What is rsdk file? How to open rsdk files?
File type specification:
The rsdk file extension is mainly associated with the Taxman's Retro-Engine SDK, a development environment for platform video games that is used to remastering old Sega's video games with Sonic The Hedgehog for Android and iOS mobile platforms.
It appears that rsdk files stores various game data.
This rsdk file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
