I realize after I wrote this that I can force the variable into lower case as a solution
lower(lcFileName)
I assume the characters XLSX and xlsx are different species in terms of ansi numbers and that it may not be possible to reconcile.
k

>is there a function that accepts upper AND lower case - right now my program (excerpt below) only detects lower
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>if 'xlsx' $ Justext(lcFileName)  = .T.
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