Idea
Add an option to the Export_To_Excel action (Data Widgets) to return the generated XLSX as a System.FileDocument, so it can be stored in the app without the user re-uploading their download.
Problem
Export_To_Excel is the only export that reflects the user's actual grid state: their column order, hidden columns and sorting. But it runs client-side, so the file only exists on their machine. Any requirement to keep the export (archiving, audit, emailing it, attaching it to a record) can't be met.
The workaround is rebuilding the same export server-side with the Excel Exporter, which duplicates the column configuration and still can't reproduce the user's column order or filters.