To import the BOM, you can use the CSV Component Import.

This works for all excel or CSV files with References and X/Y positions. If you have only BOM Information you have to use the Part Matcher

To view the BOM, use the Component Manager (see Working With Components or here).

To export and print the BOM, use the "Export" tab.

If you want to transfer the components to an other design, you can use the Component List Export and on the other side the CSV Import (see above). But this is only working if you store your package/part definition in an library.