One of the drawbacks of form usage in Microsoft Excel is that you cannot control the look and general aesthetic of some of the options. You cannot, for example, increase the size of a check box when creating a form. There is, however, a workaround to this problem so that the checkbox appears on screen. If you zoom in on your document, the checkboxes will also increase in size. This means that you will have to adjust your document in general to ensure the font sizes and other formatting looks similar.
Click "Start," type "Excel" in the quick search bar and press "Enter."
Press "Ctrl"+"O." Locate and open your document with your form included.
Click the "View" tab on the ribbon.
Click the "100%" button in the "Zoom" category and choose a larger zoom percentage. Repeat until you are happy with the size of your checkbox.
Adjust the sizing of the rest of your document in accordance with the new zoom.