File::stat 1.01 is probably what you have. It's core, but when you're a beginner, it can be confusing, especially when some of the core modules are dual-lived, meaning that they can be upgraded or reinstalled.

If you use App::DualLivedList, it'll tell you the current version, installed version, installed path, if it's dual-lived or not, or if it's just a core module. Just do dual-lived File::stat.