Since version v4.0 this is possible. To achieve this, you will need to create a Custom Report.

Please:

  1. Go to Administration > Edit Reports and create a custom report.
  2. Add a custom section to this report
  3. Make sure Excel is listed as one of the output formats supported
  4. In the custom section add the Incidents query.
  5. Remove the where clause (the one that limits it by project) so that it looks like:

    select value R from SpiraTestEntities.R_Incidents as R where R.is_deleted = false

  6. Save the report.

Now go to the main Reports section and run this report in MS-Excel format.