I want to convert a XLS file to CSV, everything is fine except for 1 column.

```
Duration (min., sec.)
2:24
4:20
4:20
4:20
3:54

```

Is outputted as:

```
Duration(min., sec.)
0.1
0.180555556
0.180555556
0.180555556
0.1625

```

Here is the function which does the conversion:

```
function convertXLStoCSV($infile, $outfile) // the function that converts the file
{
    $fileType = PHPExcel_IOFactory::identify($infile);
    $objReader = PHPExcel_IOFactory::createReader($fileType);
    $objReader->setReadDataOnly(true);
    $objPHPExcel = $objReader->load($infile);

    $writer = PHPExcel_IOFactory::createWriter($objPHPExcel, 'CSV');
    $writer->setDelimiter(",");
    //$writer->setEnclosure("");
    //$writer->save("test123.csv");
    foreach ($objPHPExcel->getWorksheetIterator() as $workSheetIndex => $worksheet) {
        $objPHPExcel->setActiveSheetIndex($workSheetIndex);
        $writer->setSheetIndex($workSheetIndex);
        $writer->save('converted/' . $outfile ."_" . $worksheet->getTitle() . ".csv");
}

```

What am I doing wrong and how can I get the desired output ? Thank you in advance.