In the docs it tells me:

"The "looks like" rule is defined by regular expressions:
write_number() if $token is a number based on the following regex: $token =~ /^(+-?)(?=\d|\.\d)\d*(\.\d*)?(Ee(+-?\d+))?$/."

So I changed my code from
$worksheet->write($row, $col++, $_, $format) for @data;

[download]
to
for (@data) {
    if ($_ =~ m/^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/){
        print;
        $worksheet->write_number($row, $col++, $_, $format);
    }else{
        $worksheet->write($row, $col++, $_, $format)
    }
}

[download]
It never printed, so it might be a glitch in the "looks like" rules?

Cheers,
jonix

In reply to Re^2: Avoiding Strange Win32::ODBC Return Values for Integers by jonix
in thread Avoiding Strange Win32::ODBC Return Values for Integers (NUL) by jonix

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