- maatwebsite/excel 3.1.26 requires phpoffice/phpspreadsheet ^1.15 -> satisfiable by phpoffice/phpspreadsheet[1.15.0]. code example

Example: Installation request for phpoffice/phpspreadsheet 1.4.0 -> satisfiable by phpoffice/phpspreadsheet[1.4.0]

composer require phpoffice/phpspreadsheet