Thanks Ksharp. The issue is the excel file I have has utf-8 but my SAS session (E.G) has Latin1. As pointed out by Leonid's post earlier, I would need to change my SAS session to utf-8, so adding any encoding option in the code would not solve the problem. Unfortunately, either changing the file from xlsx to csv or change my SAS configuration file from Latin1 to utf-8 would not be doable in my work situation, I could only leave the warning message as it. Separately, since I have an external file instead of a sas dataset, I can't use inencoding/outencoding because it is not implemented in the XLSX engine, but good to know this technique. Thanks again.
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