There are three diagnostics Can't call method, to wit:

Which did you get? The first is most common in my experience, and is usually caused by the object creation failing. But this is just a guess. You would get better help if you gave us more to work with than "I got this error message. Why?"

In reply to Re: Issues with XLSX.pm, by Anonymous Monk
in thread Issues with XLSX.pm, by Michael W

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