Hi Thomas,
Thanks for your patience.
We are glad to announce that our Blazor bi-weekly patch release (v18.2.45) has been rolled out successfully and in that release we have added the fix for “Exception throws while opening Excel filter in ClientSide application” issue. So please update your NuGet package to this version to include the fix.
We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you would require any further assistance.
Regards,
Rahul