v2.3.1

Fixed

• When downloading documents with content type ContentType::XLSX, use PhpOffice\PhpSpreadsheet\IOFactory to load document data instead of PhpOffice\PhpSpreadsheet\Reader\Xlsx. This allows parsing of document files that aren't correctly formatted as .xlsx. There is at least one supposedly XLSX report (FEE_DISCOUNTS_REPORT) that isn't properly formatted.