Use of uninitialized value in array element at .../prg/modules/Spreadsheet/SimpleExcel.pm line 351.
Use of uninitialized value in pattern match (m//) at .../prg/modules/Spreadsheet/SimpleExcel.pm line 351.

Use of uninitialized value in array element at .../prg/modules/Spreadsheet/SimpleExcel.pm line 351.
Use of uninitialized value in pattern match (m//) at .../prg/modules/Spreadsheet/SimpleExcel.pm line 351.

Argument "Second Worksheet" isn't numeric in numeric comparison (<=>) at .../prg/modules/Spreadsheet/Simp
leExcel.pm line 331.
Argument "Name of Worksheet" isn't numeric in numeric comparison (<=>) at .../prg/modules/Spreadsheet/Sim
pleExcel.pm line 331.