To update your Naruto Ultimate Ninja Storm 3 experience on the Yuzu emulator with a 100% save file, you must manually place the data in Yuzu's specific internal storage directory. This allows you to bypass the story mode and instantly access the full roster of characters. Locating Your Save Directory
Short answer: No, not directly. The PC version uses a different encryption and structure (often .sav or Steam Cloud saves). However, there is a workaround: save data naruto ultimate ninja storm 3 yuzu updated
Conclusion
Compatibility and legal notes