CWebDavEditDocBase::isNeedConvertExtension

static function isNeedConvertExtension($filename)
{
	$ext = GetFileExtension($filename);
	static $convertFormat = array(
		'doc'  => 'docx',
		'.doc' => '.docx',
		'xls'  => 'xlsx',
		'.xls' => '.xlsx',
		'ppt'  => 'pptx',
		'.ppt' => '.pptx',
	);

	return !empty($convertFormat[$ext]);
}