The Library Manager is a built-in file manager for designs in all supported formats. A click on a design file will display a list of cells contained within the file. For OpenAccess databases, it will display all cells and viewes in the database. The type is detected and opened in the correct windows (layout, schematic or text). The Library Manager can be opened from the layout window under Utilities/Misc/Library Manager or from the command line by starting the LayoutEditor with the option --librarymanager.