Hi!! Thanks everybody... It works with *filname <- paste("C:/Bonos/", gsub("-", "", Sys.date() ) , sep="")* -- View this message in context: http://r.789695.n4.nabble.com/How-to-open-a-file-with-a-name-changed-tp4631261p4631840.html Sent from the R help mailing list archive at Nabble.com.