how to assign attributes

[thanikondharish]

data main ;
input name $ AGE COUNTRY $ ;
cards ;
A 22 USA
B 23 UK
C 23 USA
;

i have main data set like above how to assign attributes at a time 

note: i have excel sheet which has attributes informtion

[Kurt_Bremser]

Start by posting datasets (as you did with "main") instead of Excel files, so we know what is there to work with.

[VDD]

do you have example SAS code that you have tried to assign attributes.

Tell the full story,  Learn by sharing what you already have tried.

That is why your teachers always told you to show your work.

[bobpep212]

This blog post tells a good story and shows a lot of work. 

https://blogs.sas.com/content/sgf/2016/11/25/modifying-variable-attributes-in-all-datasets-of-a-sas-...