Hey The size doesnt matter - so far. What your looking for is /read.csv()/ or /read.csv2()/ A simple exemple would look like this: name <- read.csv2("C:/blablabla.../filename.csv", header=TRUE, sep=";", dec=".", na.strings="NA") header = TRUE leaves a row for columne titles (i suppose ur columnes have labels) sep = ... defines how columnes are seperated. Since your using Excel ";" should work. dec = ... either "," or "." (1.24 or 1,24). Yours to sepcify. na.strings ="NA" tell r what to do with missing inputs. In this case they are set to "NA" That should do it. Manu -- View this message in context: http://r.789695.n4.nabble.com/importing-large-dataset-tp3942180p3942412.html Sent from the R help mailing list archive at Nabble.com.