: The suffix .pacc is not a standard general file extension but may be specific to a particular community modding tool or a compressed package (similar to .fantome or .wad.client used in modern League of Legends modding).
: Be cautious with unknown file types like .pacc from unverified sources, as they can sometimes be used to distribute unwanted software. ceriani123_Tristana.pacc
Could you clarify where you encountered this file or if it belongs to a ? : The suffix