Join Date: Feb 2011
Location: Kansas City, Mo.
Device(s): HTC G1, HTC G2, LG G2x, Nokia N900, HTC Amaze, Nexus 4, Nexus 7
Carrier: T-Mobile USA
Thanked 460 Times in 393 Posts
No need for an app. Look in the Nexus 7 manual about how to hook up your tablet in mass storage mode via USB cable. Your tablet will show up as another letter drive in Windows Explorer. Just drag & drop like any regular drive. Again, the manual will fully explain how to do this.
Registered Linux user #266531 Android since v1.0