@Mutondiwa_03 wrote: How do i add three sheets to Main8 dataset? Do you have SAS data sets of the "three sheets"?   If so, do you know what the three sheets added to Main8 would look like? You likely need to provide some sort of example of what the the three sheets look like in terms of a data set, the Main8, and the result. Such as, are there values of some variables in common between the the three sheets that are needed to align the values for "adding" to the Main8. ... View more