PSV save editing possible ?

[OmegaGamer]

hey guys i was wondering if it is possible to hex edit ps1 game saves from a ps3's virtual memory ?
Thanks in advance
these are saves for psn's final fantasy VII

Save 1 (save slot 1).rar
- my save file at the first save point
Cloud lv 7 hp 233/318 mp 50/57 exp 818p - 131p to next level,
Strength 20 Dexterity 8 Vitality 17 Magic 24 Spirit 19 Luck 15
Attack 38 Attack% 96
Defense 25 Defense% 2
Magic Attack 24
Magic Defense 19 Magic Defense% 0

Barret lv 6 hp 301/317 mp 43/43 exp 467p - 170p to next level
Str 18 dex 10 vit 20 mag 17 spirit 16 luck 18
atk 32 atk% 97
def 28 def% 2
mag atk 17
mag def 16 mag def% 0

Save 2 (save slot 3).rar - is just some random's file i downloaded so you can compare " sector 7 slums. Low level characters. Max gil. Full set mastered materia. Ultimate weapons. Some items and armour. "


a save for grandia if anyone one want to check it out for me please, wanting to know how to get all weapons and armor
grandia save.rar