Again, why don't you ask Excel about its open files?

# From memory, as I don't have Excel at hand currently
use Win32::OLE 'in';
my $excel = Win32::OLE->CreateObject('Excel.Application');

for my $wb (in($excel->{Workbooks})) {
    print $wb->{Filename},"\n";
};

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In reply to Re^3: Is an Excel spreadsheet open? by Corion
in thread Is an Excel spreadsheet open? by merrymonk

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