SAP GUI 7.4 Patch 12 - Disallow Excel Auto Open

Restored question from @tybtech aka Will Hankins, 2019/01/22

Hello all,

I have seen this question asked a few times, but I can't find an answer that I've been able to use. The issue is simple. When exporting data from SAP GUI as spreadsheet, a new instance of Excel is automatically opened with the freshly exported data. How can I stop this? I am aware of workarounds such as exporting as a local file, but sometimes these don't format correctly.

I've tried changing some settings in Excel but nothing works. Any advice?

Thanks,

Will