note Neighbour I've used [mod://Spreadsheet::ParseExcel::Stream] instead of [mod://Spreadsheet::ParseExcel] and it uses 1.0GB memory after parsing an xls-file with a single worksheet and 64772 rows and 120 columns. This is before I go through the parsed worksheets and rows.<br> Opening this in Excel (2007) seems to use only 230MB.<br> So even with this module, reading a somewhat large Excel file uses excessively large amounts of memory. Edit: The xls-file is 122MB. <c> print("Before creating new Spreadsheet::ParseExcel::Stream:\n" . `free -m`); my $ExcelParser = Spreadsheet::ParseExcel::Stream->new($FileName); print("After creating new Spreadsheet::ParseExcel::Stream:\n" . `free -m`); </c> results in <c> Before creating new Spreadsheet::ParseExcel::Stream: total used free shared buffers cached Mem: 3011 1250 1761 0 2 177 -/+ buffers/cache: 1071 1940 Swap: 956 177 779 After creating new Spreadsheet::ParseExcel::Stream: total used free shared buffers cached Mem: 3011 2257 753 0 2 177 -/+ buffers/cache: 2077 933 Swap: 956 177 779 </c> 1014438 1014856