Hi, I have a data set (data frame) approx. 50 rows * 600 columns. The columns are separated by commas. I would like to know how to remove those commas between the columns. What should I do to remove those commas? Secondly, if I want only to use part of the (data frame), say (50 rows * 300 columns) instead of (50 rows * 600 columns), what should I do? Thanks, Stephen