You simply haven't installed them in Bryce. You can't 'open' these files - I have this association too. Open Bryce. Open the 'EDIT' drop-down. 'IMPORT' these files....

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All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...