How to send .x3g files to MakerBot Rep 2/2X

When I upload an .x3d file to print on the MakerBot Replicator 2 or 2X, I don’t have the option to send it to my Replicator 2’s. I have 5 Rep 2’s and one 2X, so I’m really hoping there’s a way to make this work.

Hi, x3d files are intended for printing from SD card, please export .gcode format from MakerWare and it will work.

Good to know, thanks!