Hello Martin, thank you for your reply.
Yes, it is maybe an architecture clash, we run win 7 64 bit and java 32 bit. But R is 32-bit and the path variable is set to the 32-bit java folder. So maybe the problem don't lies there. Best regards Rainer -- View this message in context: http://r.789695.n4.nabble.com/Java-problem-XLConnect-xlsx-package-tp4631304p4631433.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.