Thanks for the great help everyone,

All I need this for is to read data out, saving the user having to save-as tab delimited first (hey, the less they need to do, the better things seems to run ;) ), looks like this will do the trick just fine.

As an aside, my last experience with reading excel was with java, where I had to use some library that actually launched excel to read the file - it worked horribly and crashed all the time; took me several weeks to realize that what I was told were "excel" file were just tab delimited text files with .xls - excel just opened them and converted on the fly. Well, live and learn :)