I've just seen that sep sep cannot be "," because there are not commas in the file. but I want it to take the first and second columns (date and time) as a whole, the index. -- View this message in context: http://r.789695.n4.nabble.com/when-to-use-textConnection-tp2327132p2327622.html Sent from the R help mailing list archive at Nabble.com.