Not possible, it seems, yet if you output text (as such, via SCREEN 0), you
can use PrtScn button on your keyboard to copy the on-screen image.
But, to keep and use output from SCREEN 1 (and upwards) requires saving to
an array, or such-like.
Incidentally, a QBasic program is saved in a .BAS file, but you can also
save it in a .TXT file - for other uses. Saving to a .DOC file is not
recommended.
PRINT is alright, but I find LPRINT a pain.