>>> "JJ" == Jeremie Juste writes: Hello Jeremie > Hello Uwe, > If you have python or R at hand you might want to go for this option. > In R you would so something like. Thanks, I first tried out the python solution, so I installed 1. Xlsx2csv that works fine for xlsx fine but not, as the name indicates, xls 2. So I tried out csvkit, which should, in principle, also convert xls files, well for the xls files I used, it did not. So in summary, there are solutions for xlsx but I struggle fo find one for xls. (I most likely could try out unconv from libre office, that however is sort of slow). Regards Uwe