he content bank is an area in Moodle where content (currently H5P content) may be stored, edited and created.
The content bank repository gives access to these files from the file picker.
As a teacher, when you are in a course you'll find a link to the content bank from Course navigation > More (Boost-based themes) or under Site pages (Classic-based themes).
Files may be viewed in list view by clicking the icon top right of the content bank.
The content bank repository is available from the file picker to locate and add H5P files into courses.