QubeMaster Xport is only an encoder-packager and does not come with a player option.
As part of our Mastering product line we do have a Player-cum-packager called QubeMaster Wire Edition which is capable of ingesting and playing completed DCPs.
As the name suggests, QubeMaster Wire Edition can also create DCPs from pre-encoded Jpeg2000 files, besides being able to play/preview completed DCPs. This feature is useful for those who work with feature film content and typically require the feature to be encoded as a series of reels instead of one large MXF file. For those who require this feature, the workflow would involve encoding each reel separately in QubeMaster Xport, then ingesting them into QubeMaster Wire Edition, previewing them and packaging all the reels together into a DCP.