Report Hosted in .NET Core 3.1 Can't Get XLSX Option

[Nathan]

I built a Blazor app (server) on.NET Core 3.1 and I am using Telerik Reporting with the HTML5 viewer to present reports.  Everything is working, except the export formats only allow RTF, CSV, TIFF, and PDF.  My users need to be able to export to XLSX format as well. 

I have installed the NuGet package for DocumentFormat.OpenXml version 2.7.2 per the documentation, but I don't see the option showing up still, and I don't know how to troubleshoot the issue.  Any advice on what I am missing to get the additional format option to appear?

[Nathan]

Support helped me out.  I was missing a NuGet package:  Telerik.Reporting.OpenXmlRendering

Thanks