Spreadsheet saveAsExcel throws an error

[martintabakov]

Bug Report

Calling the saveAsExcel method of the Spreadsheet throws an error, and the component is not exported

Regression introduced with 2024.4.1112

Workaround: https://dojo.telerik.com/fDhKflqE/2

Steps to Reproduce

1. Open the saveAsExcel API reference - https://docs.telerik.com/kendo-ui/api/javascript/ui/spreadsheet/methods/saveasexcel
2. In the example, click the Export button, and check the browser console.

Current Behaviour

An error is thrown, and the file is not exported

Expected behaviour

No errors, and the file should be exported