Here's what SCID's File menu looks like:

SCID's File menu contains the following functionalities:
New — creates a new, empty [ScidDatabase].
Open — opens any recognized database on your file system.
Close — closes [TheActiveDatabase].
Finder — opens [TheFileFinder].
Bookmarks — submenu of bookmarks functions; see [TheBookmarkList].
Open base as tree... — opens any database on your file system in [TheTreeWindow].
Open recent base as tree... — opens as tree one of the last 9 previously opened databases.
Maintenance — submenu to compact, classify, sort, or spellcheck databases; see [TheMaintenanceWindow] for more details.
Switch to Database — switches between the opened databases.
1: to 5: — opens one of the last 5 previously opened databases.
... — opens one of the last 6 to 10 previously opened databases.
Exit — Exits Scid.