The version of MATLAB that launches with Excel Link/Spreadsheet Link EX is the last one that was registered as a COM server. This is typically done after MATLAB is installed. However, you can manually over ride this by using the following steps.
1. Launch the version of MATLAB that you would like to start up when Excel Starts.
2. Execute the following line of code at the MATLAB command prompt:
A COM server version of MATLAB will start on the toolbar. You can close the COM server version and the client. Then restart Excel, and if needed click the “Start MATLAB” button in the Spreadsheet Link EX toolbar.
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