Download multipart RAR archive with textures from Downloads page.
You need to download all parts of archive to be able to begin the unpacking process.
For unpacking of archive you can use WinRAR or other compatible software.
If you have downloaded all files needed, e.g., all RAR files, and placed them in the same directory, it is sufficient to double-click the file with the extension “.part1.rar” to start the unpack process (First part only! All other parts will be found and extracted automatically!).

Create a folder anywhere on the local or network drive, then extract downloaded archive to this folder.
Specify path to this folder (include in path folder mapsX5).

Settings > PRESETS LIBRARY > Texture Maps Location