Class does not recognize some cells as having data

Your class is working fine, but for some reason, it does not display some cells that are not empty.

Here is a code snippet:

foreach( $xlsx->rows() as $r ) {
echo "$r[0]." ".$r[1]." ".$r[8]."<br/>";
}


Now, it shows all of the rows, but there are certain rows in which $r[0] clearly has a value in it, but it is not displayed in the above statement.

Any idea why?

may be image cell?

no, I checked. It is numeric.