DXL files

Is there a way to convert .dxl files into another format?  Currently we have .dxl files (which look to be just emails in an xml format) from an application we are migrating.  We have a license for the Quest Notes to SharePoint migrator which I understand can migrate .dxl files, but for our situation it is another data source (outside of Lotus Notes) that has the .dxl files.  I was just wondering if there was a way to utilize the migrator to convert these files.