The GBAtemp forums have a verified thread. Avoid YouTube links—they often contain bloatware.
ms0:/PSP/SAVEDATA/ULES02242DATA00 (Europe) ms0:/PSP/SAVEDATA/ULUS10515DATA00 (USA - Note: No official US release exists, usually Japanese or EU versions with English patches are used ) ms0:/PSP/SAVEDATA/NPJH50605DATA00 (Japan) yu gi oh tag force special save data
Locate your emulator's install folder. Go to memstick > PSP > SAVEDATA and paste the folder there. The GBAtemp forums have a verified thread