Hi, I'm a novice at SAS macro and am having some issues writing a function which does the following: takes 3 inputs 1. dataset name (e.g. from a data step) 2. a folder directory where all of various excel outputs will be stored 3. the desired excel file name for the dataset    I have currently written my function as follows: %make_excel(dataset= , output_path = , filname = ); ods excel file = "&output_path.\&filename..xlsx"; proc report data= &dataset.; run; ods excel close;  %mend make_Excel   Presently if I call the function with something like: %make_excel(dataset= ds, output_path = C:\Users\XXXXX, filename = YYYYY)  everything works fine, which is great. But I need to call the function a bunch of times and I don't want to constantly copy/paste the output path. So I'm trying to set a macro variable such as:   %let out_tmp = C:\Users\XXXXX;   And then call the function by %make_excel(dataset=ds, output_path = %out_tmp, filename = YYYYYYY)   However, when I am trying this I keep getting an error in the long: "Error: physical file does not exist, C:\Windows\systsem32\%out_tmp\YYYYY.xlsx"   ChatGPT and google have unfortunately been no help so far. Any idea why this might be occurring? Thanks!   ... View more