To TEMPORARILY uninstall Convert XLS to PDF For Excel
1. Open Word and Goto Tools->Cutomize and under Toolbars tab and uncheck "Convert XLS to PDF For Excel" in the list box.
To PERMANENTLY uninstall Convert XLS to PDF For Excel
1. Activate the Control Panel, double click Add/Remove Programs.
2. Search for Convert XLS to PDF For Excel listbox entry and Remove the program.
3. Goto Tools->Cutomize and under Toolbars tab, Select the item called "Convert XLS to PDF For Excel", then click the "delete" Button in the right side of the dialog.