To change the name of the selected object, use the "Name" field above and to the left of cell A1.
If by chance you only try to change the capitalization of some characters, Excel does not accept this as a change, and it will return to the original as soon as you press Enter.
For example, if it is called CheckBox5, and you want to change it to checkBox5, you need to rename it to something else first, and then to checkBox5.
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