Don, A more correct answer:
Update to bigfiles.ijs
...
CreateFileW=: >@{.@('kernel32 CreateFileW i *w i i * i i i'&(15!:0))
...
u=: +./@(131072 2&=&(3!:0))
...
bfsize=: 3 : 0
if. u y do.
try. fh=: CreateFileW ((7 u: y),{.a.);0;0;NULLPTR;OPEN_EXISTING;0;0 catch.
--
David Mitchell
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