hi there and a merry christmas to you all. i'm a student and i'm studying c# by myself. now, i have an excel file. And i want to be able to use that data in the columns. i think it would be the most interresting if i could make such a column as a arraylist of data arrays. in second phase, i also might need to be able to link data of columns. like in the first column there is a description, in the 2nd a data. but they must remain linked. is that possible. could you please help me. thanks. Filip Piron civil engineer-architect student university GHent