As of now the only way to access data/data folder on the GenyMotion emulator is by using adb shell commands. Since the emulator is running inside Oracle VirtualBox, direct access to the storage is a security issue and therefore you wont be able to find it through explorer or eclipse. The VM saves the storage in .vmdk file format. Which is a virtual machine disk format. The data/data folder is somewhere deep inside that file.
Click here! To learn more about .vmdk file format.