I presume you are referring to Spreadsheet::XLSX? Is it properly installed? There should be additional pm files under the XLSX dir with the pm file.

However, the error suggests you are not using a Spreadsheet::XLSX object when calling the add_worksheet method.

There are very limited details in your post so it is hard to provide anything but guesswork. Could you please provide an SSCCE?

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

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