You exactly got the point. I had this Excel spread sheet and had to do some clever data matching. Just reading excel is to slow so I wanted to get it into a scv format. Only 2Gig of memory are not sufficient to open a 66MByte Excel File in Spredsheet::ParseExcel, So i did this directly via Win32::OLE, which opens Excel to communicate directly. However, communicating and formatting 12MByte (Actual Text data) took 2 long hours to parse.
It somehow just strikes me that is quite slow and in CSV file data rates equals 13.6kbps. Why do I think Office is a big pile of s+$%^?