Magic Lantern platform name: 7D
Just follow the guide available on our wiki.
If installed firmware version doesn't match the requirements, you will have to upgrade (or downgrade) it before using Magic Lantern.
Where can I get a required Canon firmware version?
How to downgrade firmware if camera won't let me do it?
Legacy lua_fix builds (lua_fix)
Latest version of Lua improvements branch
Legacy nightly builds (unified)
Latest version of unified nightly builds from Heptapod repository (2018)