Could you clarify what you're seeing or trying to do with the Tekken 6 PSP save data? That way I can give you a more precise answer.
What are you playing on? (PSP console, PC emulator, Android phone?) Which game region do you own? (US, Europe, Japan?) Do you need help finding a trusted source for the download? tekken 6 psp save data verified
To use these files on a physical PSP or an emulator like PPSSPP, they must be placed in the correct directory. Could you clarify what you're seeing or trying