File Type:
string(9) "Excel2007"
Worksheet Names:
array(2) {
  [0]=>
  string(7) "Invoice"
  [1]=>
  string(20) "Terms and conditions"
}
Worksheet Names:
array(2) {
  [0]=>
  array(5) {
    ["worksheetName"]=>
    string(7) "Invoice"
    ["lastColumnLetter"]=>
    string(1) "E"
    ["lastColumnIndex"]=>
    int(4)
    ["totalRows"]=>
    string(2) "28"
    ["totalColumns"]=>
    int(5)
  }
  [1]=>
  array(5) {
    ["worksheetName"]=>
    string(20) "Terms and conditions"
    ["lastColumnLetter"]=>
    string(1) "A"
    ["lastColumnIndex"]=>
    int(0)
    ["totalRows"]=>
    string(2) "14"
    ["totalColumns"]=>
    int(1)
  }
}