Blenders x file exporter does not export animation.
You will need to export it in FBX format, and then import to fragmotion and then export to x file with bones, skinned animated option and the frame rate you made the animations and the total frames of the animation.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit, Screen resolution 1680 x 1050.