Libraries which containing the PHP class ConditionalFormatting

Solve: PHP Fatal error: Uncaught Error: Class "ConditionalFormatting" not found

PhpOffice\PhpSpreadsheet\Reader\Xls\ConditionalFormatting

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This class belongs to the vendor Ahmadyusri and the package Phpspreadsheet

PhpOffice\PhpSpreadsheet\Reader\Xls\ConditionalFormatting

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This class belongs to the vendor Anil and the package File-export

PhpOffice\PhpSpreadsheet\Reader\Xls\ConditionalFormatting

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This class belongs to the vendor Nazalas and the package Phpspreadsheet