The only way that ps2 to sps conversion makes sense, would be altering or export of saved game positions from a device called Sharkport that allows for transfer of game files between PS2 and PCs. This might actually not a be direct file conversion, more like operation done with the files during the porting/transfer.
As always, if you have any issues with Sharkport files or their transfer, it would be best to consult their support or perhaps to reach out to online community for help.