AirDrop file transfer between iOS and Mac is not available for iOS 7 and Mac OS X 10.10 or earlier OS X version.AirDrop is built-in service in iOS and OS X system but there is no set up file for Windows.
However, there are several requirements for using AirDrop: AirDrop makes file share and transfer so easy.
AirDrop, a free ad-hoc service provided in OS X and iOS operating systems, enables users to transfer files from iOS to iOS, Mac to Mac, iOS to Mac and Mac to iOS without using email or mass storage device.