send file through wifi

So, I bought this wi fi module, esp8266. And I want to use it on my 3d printer. I should be able to see how much of the printing is done(this is the easy part, I already did it), and also I need to be able to send 3D design files to it using my phone. I know it might take a really long time to upload the file. But all I want to know is if it is possible. And if yes how?

How are we supposed to help you if you don't give us any information about the 3D printer?

Pieter

That, and other basics like which ESP module you're using, and the software you have in place, the size of the files to be transmitted, the available protocols, the available storage space and how it's accessible by the system, and the rest of the hardware and whatever we should know.

Sending files over WiFi to an ESP module is definitely possible.