Bug report

The current client-side export functionality does not preserve the number of columns.

Reproduction of the problem

• Load the following file in the Spreadsheet which contains columns up to "BA".

• Export the file

• Load the file again in the Spreadsheet and notice that the columns are displayed up to "AX" instead of "BA".

Current behavior

Client-side export does not preserve the number of columns greater than "AX".

Expected/desired behavior

Client-side export does not preserve the exact number of columns.

Environment

• Kendo UI version: 2019.2.619
• Browser: [all]