Click the Microsoft Office button on the Excel window screen to open the list of options and then click the “ Excel Options” button.How do I enable scrolling on my mouse in Excel? CHECK the box “Reset zoom level for new windows and tabs” Click APPLY. Tools → Internet Options → Advanced (tab on top) → Accessibility. How do I stop my zoom level from changing? So, check to see if you are accidentally holding the Ctrl key on your keyboard, or perhaps it is stuck.
It sounds like you are accidentally either using the scroll wheel on your mouse, or a keyboard combination to change the zoom on your computer. Each click, up or down, increases or decreases the zoom factor by 10%. (Interesting, there’s no keyboard shortcut for accessing the Zoom control.) To zoom in and out using the mouse, hold down the key while you turn the mouse wheel. You might be interested: FAQ: Why Did Party Down South Get Cancelled? How do you zoom out on a mouse?