Switch to the Finder and select "Connect to Server" from the "Go" menu. Enter the Files WebDAV URL into the Server Address text field and click "Connect".
Open "My Network Places"
Run the "Add Network Place" wizard
Select "Choose another network location"
Enter the appropriate WebDAV URL (you can find this by running Files on your iPhone, tap the green button in the bottom-left hand corner, this will display the current WebDAV URL for Files).
Enter a name for this connection
Ensure "Open this network place when I click Finish" is checked and click Finish
In future, assuming the WebDAV URL has not changed, you can connect to Files simply by opening "My Network Places" and double-clicking the network location you just created.
Windows Vista/Windows 7: Map Network Drive
Open Computer from the Start Menu.
Click on the Map Network Drive toolbar button.
Enter the Files URL into the Folder field.
If you set up Files to use remote authentication then you will be prompted for your username and password at this point.
Note: If you have problems authenticating try entering your username/password
by clicking on the "different user name" link, before clicking Finish.
This will map Files to a network drive with a name such as: "DAVWWWRoot (\\192.168.0.4@8080) Y:"
To reconnect in future just open this network drive from Computer.
Windows Vista/Windows 7: Create a Network Location
Open "Computer" from the start menu.
Click on the "Map Network Drive" toolbar item
On the Map Network Drive screen, click "Connect to a Web site that you can use to store your documents and pictures", click Next
Click "Choose a custom network location", click Next
In the "Internet or network address" field, enter the WebDAV URL obtained from Files e.g. http://192.168.0.5:8080
Enter a name for the connection, click Next
Ensure that "Open this network location when I click Finish" is checked and click Finish.
Note: we recommend that Windows XP/Vista users install the following WebDAV update from Microsoft (Windows 7 users do not need the update):