ESP8266 Web Server - part 1/2 - serve html web page

Hi ,Can you please help us with our final year project,We have used esp8266 to connect to our 3D printer,We want to control the 3D printer from anywhere,A whole website is created but the webpage runs only on localhost that is using wifi only ,We want to access it from anywhere,so that we can upload G-CODE to 3d printer from anywhere in the world G-Code is the source file required by the RAMP board of the 3D printer.Please Advise as it will be a big help . Thanks waiting for your invaluable advise.
Regards,

For esp32 it didnt work. Maybe with the lib LittleFS_esp32 from lorol

thansk for your knowlege.where is part 2 pls?