How do I install an apk?

[Moe Adel]

Hello.
So, guys i just got my device a couple of days ago, and there is this game that i wanted to install on my nexus, away from the play store. First, i came from an s4, so all what i had to do was to copy the OBB. file to the OBB. folder, install the apk. And Done!
First, i had to install a file manager, as there was not any but i can't find an OBB. FOLDER, tried with the data. Folder but didn't work, how can i install it just without any need of rooting the device??

 

[SEVEN_Networks]

Is the apk not directly available to download? Have you been asked about permissions, etc?

 

[FosterCathy2123]

There some software that can send apk to your phone

 

[clownFaceProd]

In the file manager you installed, do you know if hidden files and folders are visible by default?