I notice you're asking for a detailed piece on a phrase that appears to be a mix of Chinese pinyin ("zai ci chu xia") and English ("Jenny Mod").
: Use a file manager app to open the mod file directly with the Minecraft app. Safety Warning zai ci chu xia zai Jenny Mod
Tap the .mcpack and .mcaddon files individually; Minecraft should automatically import them. I notice you're asking for a detailed piece