The file "Boomerang Fu -NSP--Update 1.3.2-.rar" appears to be a compressed archive file, specifically a RAR (Roshal ARchive) file. The file name suggests that it contains an update for a game called "Boomerang Fu" in version 1.3.2, possibly for the Nintendo Switch console, given the "-NSP-" in the filename, which could imply it's in NSP (Nintendo Switch Package) format after extraction.