[ROM] Sony Xperia Z2A (D6563) TW_23.4.A.0.546 PRE ROOTED

I just found a Pre Rooted flashable ROM for Xperia Z2A but I dont know how to use it, please create a tutorial because I just found it on a taiwanese and chinese website.

Here are the files:
D6563_TW_no_system_23.4.A.0.546.ftf
D6563_TW_23.4.A.0.546_flashable-prerooted.zip

Here is the translated version of the website: (PS. the links are provided above)


Source: APK.TW(CLICK ME)