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This paper reports on the magnetic properties of granular films consisting of iron, a ferromagnetic metal, and an insulator MnF2, which is antiferromagnetic below the Neel temperature TN = 67 K. Films were prepared by co-evaporation in vacuum and deposited onto polyimide films. DC magnetization curves recorded by a PPMS magnetometer from 5 to 300 K. Magnetization measurements for the sample with x = 0.25 showed superparamagnetic behavior at 300 K. The sample with x = 0.50 was soft ferromagnetic with the coercive field Hc = 20 Oe at 300 K. X-ray diffraction and Mossbauer spectroscopy were utilized for the characterization of the samples. Above TN, strong ferromagnetic exchange coupling between Fe and MnF2 is dominant. Below TN, each iron particle is magnetized in a random direction as determined by the magnetic anisotropy.