>
> But what can I do in case I don't know the number of columns in my
> file??
>
 I mean is there any way I can specify the colClass of only third column
> and for other columns it can take the default classes??


Not supported, sorry (I put it on the list).

x = read.xls( "D:\\file.xls", colClasses = c( rep( NA , 2 ),"isodate", rep(
NA, 9 ) ) ) should work. But you still have to know the total number of
columns. (The pro version does have a xls.info command and/or you could read
in just the first row and check its content).

-- 
Regards,
Hans-Peter

	[[alternative HTML version deleted]]

