Hi J.C., thank you for your reply !

The error is now gone!

However I'm still failing to get the desired output.

Could you point me to the right direction?

I have updated some info in the question.

Thank you for your help!

In reply to Re^2: Spreadsheet::WriteExcel; combining xls into one by MissPerl
in thread Spreadsheet::WriteExcel; combining xls into one by MissPerl

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