%macro one (output, Sample);

proc import out=output

datafile= "C:UserskomalDesktopSample.csv"

dbms=csv replace;

getnames=yes;

run;

%mend one;

%one (output, Sample.csv);
%one (data2, datafiletwo.xlsx);

%macro one (output, Sample,type);
    proc import out=&output
    datafile= "C:UserskomalDesktop&Sample"
    dbms=&type replace;
    getnames=yes;
    run;
%mend one;

%one (output, Sample.csv,cvs);
%one (data2, datafiletwo.xlsx,excel);
%one (class, class.txt,tab);