How to share internet connection from desktop PC as wifi for laptop and phone?

In 3 weeks time, I'll be heading overseas to visit family that doesn't have wifi. They do, on the other hand, have a desktop PC connected to landline internet (i guess that's what it's called?) and I need a way to be able to access the internet from my phone and laptop while I'll be staying... show more In 3 weeks time, I'll be heading overseas to visit family that doesn't have wifi. They do, on the other hand, have a desktop PC connected to landline internet (i guess that's what it's called?) and I need a way to be able to access the internet from my phone and laptop while I'll be staying there. Is there any kind of application or device or what have you that will share the desktop PC's internet as a wifi network? Full disclosure I don't know what the hell I'm doing
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