You need to extract the content inside your mods folder.

description:
This is a final compilation of my maps for FS17.
This package contains all published and organized maps.
This package is part of the XLFarms project, which features giant-sized maps with large plots of land to work with CoursePlay.
The maps show the latest improvements and corrections.

features:
Topography based on real location, with great plains and long hills.
Complete main farm in the center of the map
Great fields for cultivation
Map has no animals
The map does not have forestry

Contents of this Part I:
XLFarms X1 - Final Edition
Map name: FS17_XLFarms_X1_Final_Edition_0
XLFarms X1 - Ultimate Edition
Map name: FS17_XLFarms_X1_Final_Edition_1

Mods you need
Creator Tools
CoursePlay 5
VehicleGroupsSwitcher - 'VeGS'
Recommended mods
More Realistic Mod - MR
drive control
Chopped Straw