How to Check File Exists in SAS - Code Snippet

* Task: Check File Exists
* Language: SAS

%macro check_file_exists() 
    * Implementation for Check File Exists
    %let result = ...; * Initialize variable
    * TODO: Implement core logic here
    * Step 1: Prepare data
    * Step 2: Process Check File Exists
    %put("Done");
%mend;