To do this you should read and follow Microsoft’s documentation on how to “Enable Mods” - see: Xbox Support

Mods enabled: You must have mods enabled on Microsoft Store. This is an issue we are trying to fix and we are currently in talks with Microsoft Store’s support to figure out a solution. Requirementsįor mods to work on Microsoft Store the game must be installed on the same disk drive where Windows is installed (typically this is the C: drive).

Steps are available for both local and dedicated server sessions.

The list of steps shows how you can install and play with mods and also how to uninstall them. Now that Conan Exiles is also available on the Microsoft Store (PC), we’ve decided to make a quick guide on how Mods work on the Microsoft Store (PC) version of the game.