In the left part of the window the directory hierarchy can be traversed by double-clicking on the directory names.
In the right part the existing files in the current directory are displayed.
The list can be restricted by a filter. For example all B(PN)² programs can be listed by selecting *.bpn2 as a filter, provided you follow the naming conventions and do not name a B(PN)² program, say, bill.txt.
The current selection is displayed at the bottom of the window.
A file can be opened either by a double-click on its name or by a click on the OK button when the file is selected.
The file browser can be closed by a click on the Cancel button.
The Help button invokes a help page.