in reply to
Re: Reading in merged cells from Excel XLSX
in thread Reading in merged cells from Excel XLSX
The author of Spreadsheet::ParseExcel has plans to write Spreadsheet-ParseExcelXML for XLSX, but that is delayed because of Spreadsheet-WriteExcelXML iirc.
The write excel library is Excel-Writer-XLSX, but I don't know if that has anything to do w/the slowness of the reader development. The reader Excel::Reader::XLSX is under development, and is somewhat usable, though in an alpha state. And I don't know how it handles merged cells.