Where is Exchange Server default location?

Excuse me, I'm having some trouble locating the default location of the Exchange Server. Could you please clarify where it is typically stored? I've been trying to access it but I'm not sure where to find it. I've searched online but the information seems to vary depending on the version of Exchange Server and the operating system it's running on. Could you possibly provide me with a more specific location or guide me through the steps to locate it? Your help would be greatly appreciated.