Installation:
Move the folder from the archive to the mods / update / x64 / dlcpack path;
Then, through the program: "OpenIV" follow the path mods / update / update.rpf / common / data;
Find the file: dlclist.xml, transfer it to the desktop;
Open the dlclist.xml file through notepad;
Add line: <Item>dlcpacks:/2003sierra/</Item>
Save and move the file back.