New Post: How can I loop through G1 to AJ5

Hello! you might have already solved this, however i have a function that lets you handle any excel column letter as numbers. You might find it useful, i use it to loop though files that need a diferent amount of labels created every time...

Here it is:

//This function is for converting Numbers to Letters that are compatible with Excel, and Excel writter for cell selection
function num_to_letter($num, $uppercase = TRUE)
{
    $num -= 1;
    $letter =   chr(($num % 26) + 97);
    if ($num >= 26) {
        $letter = num_to_letter(floor($num/26),$uppercase).$letter;
    }
    return      ($uppercase ? strtoupper($letter) : $letter); 
}