Google_Image_Result_for_http___images.productwiki.com_upload_images_beckman_coulter_fc500-400-400

The FC500 produces a LMD file that contains a fcs2.0 portion and a fcs3.0 portion.

Simply setting the preferences in v10 to read the fcs2.0 portion will ensure that the data is displayed in FlowJo as it was shown on the FC500.