_manifesttriomphe.ymf

Modders rarely write this file manually. Instead, they use specialized development tools:

: This is the primary 3D map editor for GTA V. Within CodeWalker's "Project" panel, developers can find a Manifest Generator tool. _manifesttriomphe.ymf

Are you trying to with a specific mod, or are you looking to create your own manifest using CodeWalker? Modders rarely write this file manually