PhpSpreadsheet 安装 composer require phpoffice/phpspreadsheet支持的格式是否支持读是否支持写Open Document Format/OASIS (.ods)✓✓Office Open XML (.xlsx) Excel 2007 and above✓✓BIFF 8 (.xls) Excel 97 and above✓✓BIFF 5 (.xls) Excel 95✓SpreadsheetML (.xml…