Parser for XLSX is not installed -> Spreadsheet::Read Not working after installing 5.16 | ActiveState Community Site

From the Spreadsheet::Read man page: For Microsoft Excel this module uses Spreadsheet::ParseExcel or Spreadsheet::XLSX There isn't a "use" statement in your example to load a back-end, so you're depending on the module to detect and load one on it's own. Have you installed one of these back-end modules to provide the xlsx function?