How to figure out which DB engine a particular .odb file uses?

How can I figure out if a .odb file (which I created a long time ago, or got from an unknown source etc.) uses the HSQLDB or the Firebird database engine? (Other than by getting my hand on an old, pre-Firebird version of Base and trying to open it.) Is there any properties window which will tell me what DB engine is being used?


should be in the status bar: