Hi and welcome to Arturia forums.
I just can't seem to get these to open in Jupiter 8V v3 and i can't find an "import" option in The Jupiter 8v v2
In Jupiter-8 V2 the import and export buttons is the 2 blue buttons at the right just above the keyboard. It's number 3 an 4 from the right (Right of the originals preset buttons).and marked IMP and EXP. IMP=import and EXP=export.
Just in case. Remember when V2 presets are imported into V2 you can convert them to Jup-8 V3 using the Preset updater/ converter you can find on Arturias download page.