how do i copy a index file 

Aka html

wait what do you mean like copy the file itself or steal the files

copy the html file and paste it somewhere like when i make something and i wanna copy the html file how do i do that

hello

uhh idk but if your saying look for the html version of your game, you gotta look into the source of the webpage.

I’m looking for a index.html file as well so I can upload my Fnf mod

yello already teached me on discord