OutlookCsvFileImport::enableCompatibilityMode

public function enableCompatibilityMode($enable)
{
	$enable = (bool)$enable;
	if($this->enableCompatibilityMode === $enable)
	{
		return;
	}

	$this->enableCompatibilityMode = $enable;
	if($enable)
	{
		$this->headerMap = is_array($this->originalHeaderMap)
			? $this->prepareCompatibleHeaderMap($this->originalHeaderMap) : null;
	}
	else
	{
		$this->headerMap = $this->originalHeaderMap;
	}
}