Hi,
Currently, we don’t have a spreadsheet in Blazor. However, we have already considered this on our end. You can track the status of this feature using the link below from our feedback portal:
Feedback Portal Link: https://www.syncfusion.com/feedback/10982/spreadsheet-new-component
As we didn’t provide complete support for spreadsheet in Blazor, we have suggested a workaround of rendering the spreadsheet in a JavaScript template as html in Blazor. Therefore, the import and export functionalities are to be done with the online services.
Your requirement will be sorted out only if we provide support for spreadsheet in Blazor. We appreciate your patience until then.