Minecraft v 0.16.0 wont open .McWorld (probably. McPack too) automatically

I am using Asus Zenfone 5 (ASUS_T00F), which using Intel atom processor, I already updated MCPE into 0.16.0 and download the Castle Siege and Alien Invasion addons from the addon page, when I open the downloaded file using ES file manager the file doesn't open automatically on MCPE. Instead it asks to open with other app like in the picture I provide.
Please help, is this issue because my phone using Intel atom processor or the ES file explorer problem?
P. S. This phone also can't use minecraft mod from blocklauncher and master for minecraft. apps. I assume it because Intel x86 architecture does compatible with the version?