A few people have been using the macro I wrote about in Alteryx: Wildcard Inputs, but have an issue with XLSX files.  The first thing to remember is that these macros I post (on my personal blog) are examples only and are not a supported part of the product.  I am happy to give people advice on how they might take what I did and extend it.  However, in this case, I thought it might make a good post about Alteryx macros with optional parameters, so I went ahead and did it anyway. Continue reading →