I probably titled this node incorrectly and/or explained my issue incorrectly. I agree, I don't think the issue is with the code itself or Spreadsheet::WriteExcel. I have set the permission on the directory where I have the scripts for now to give 'everyone' full control to try to resolve the issue. My original code runs, but saves the excel file to the server and doesn't make it available to the client. Does it sound like I still have a permission issue somewhere?
It's been a while since I used IIS - or any web server for that matter - but does IIS understand the MIME type you're using and how to handle it? Also, the client side browser is going to have to launch an ?ActiveX control? to view the Excel sheet in the browser? I will need to understand how to handle Excel files, correct?