Hello MitchellXP, welcome to the Microsoft community my name is Luiz Cruz, I am a Windows 10 expert user and would be happy to help you;
I understand that you want to create a local network to access files and folders between computers;
To do this, please follow the instructions below:
Press Windows key + I and access settings;
Click on Network and Internet;
Scroll down and click Network and Sharing Center;
On the left of the screen, click Change advanced sharing settings;
Click the down arrow next to Private and check the options: Enable network discovery, Enable automatic configuration of network connected devices and Enable file and printer sharing;
Click the arrow next to Guest or Public and check the options: Enable network discovery and Enable file and printer sharing;
Finally, click the arrow next to All networks and check the options: Enable sharing so that anyone with network access can read and write files in public folders and Disable password-protected sharing;
Note: Do this on the two computers you want to access the network;
I hope I helped, see you soon!