CI Views are customized way to display CIs in CMDB. A view definition includes which property columns shall be shown and condition to filter which CIs shall be listed. Here you can select from available configured CI Views.
In left panel all available views are listed, divided in CI View Categories.
For description how to create a CI View, se here.
Click view in left panel to show the view. In view you can click a row to open CI Form for selected CI.
Above list there is a link to export data for CIs in the view to Excel or PDF file. See CI Export function
Filtering, sorting, paging, refresh and column width functions are similar to other lists and described in General User Interface.