USB:

Using the system’s USB port is one option to transfer files. Plug in a USB drive to a compatible port and the drive folder that contains the files will open.

Cloud Storage

Cloud services such as Google Drive, Dropbox, as well as Microsoft One Drive which is a web-based file hosting service, use cloud storage to enable users to store and share files and folders with others. You can upload the file from the tablet to Dropbox and later download to another computer. Keep the systems connected to the Internet.

MobiKin Assistant for Android

It's the easiest way to backup your tablet to PC,with it,you can transfer data wirelessly.