When you choose to exit the Browser, all windows are closed, and a Browser database file is saved so that the next time you load the Browser on this particular file, it will open quicker. In this tutorial, you opened a Browser session on an EXE file, so a Browser database file with the extension .pde will be created. If you had opened a Browser session on a DLL or LIB file, then a Browser database file with the extensions .pdd or .pdl, respectively, would have been created.
