NAME
Spreadsheet::ParseODS::Worksheet - a sheet in a workbook
get_print_areas()
my $print_areas = $worksheet->get_print_areas();# [ [$start_row, $start_col, $end_row, $end_col], ... ]
The "->get_print_areas()" method returns the print areas of the sheet as an arrayref.
Returns undef if there are no print areas.