how to open pkg files?
['Free Download Easy 7-Zip.', 'Install Easy 7-Zip by step-by-step instructions.', 'The installation will associate xar/pkg with Easy 7-Zip automatically.', 'Double-click on xar/pkg file to open xar/pkg file with Easy 7-Zip.', 'Alternatively, Right-click on xar/pkg file on Windows Explorer.', 'Done.']