If you want a truly new save file without hacking your Wii, you must manually delete the old one.
The downside: This unlocks nothing. You are back to starting with only John Cena, CM Punk, and a handful of others. You will have to replay the 40+ match "Attitude Era" mode to unlock the rest.
If you already have a 100% save but want a fresh progress save (e.g., new Universe mode, but with legends): wwe 2k13 wii save data new
Unlike modern consoles, the Wii version of WWE 2K13 saves data directly to the console’s internal memory or an SD card. A “new” save file typically means:
Unlike the Xbox 360 or PlayStation 3 versions of the game, which have robust modding communities that inject new textures and models, the Wii modding scene for WWE ’13 is niche. If you want a truly new save file
If you are looking for a fully updated "WWE 2K24" experience inside WWE ’13 on the Wii, the reality is that the modding tools do not exist to that extent. The PS3/360 versions are the preferred platforms for that type of "new" content.
It is not possible to directly generate a ready-to-use WWE ’13 save data file for the Wii (.bin, .dat, or private folder structure) here, as those files are binary and console‑specific. The downside: This unlocks nothing
However, I can provide you with a complete, practical guide to obtaining or creating a new save for WWE ’13 on Wii — including unlocking everything (legends, arenas, title belts) without playing through Road to WrestleMania or WWE Universe mode.