You can increase the percentage size of the area, to zoom in. There is a Zoom icon on the view tab. There is also the Zoom slider on some versions of Excel, at the bottom right of the screen.
On the View tab, click the Zoom icon.
You can zoom in to do that, using the Zoom option.
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Pick a zoom amount at View/Zoom, or turn the mouse roller while holding down the Ctrl key.
view options
ZOOM
Change the Zoom or view percent. A smaller zoom percent will let you see more on the screen, but everything will be smaller.
Yes, the volume buttons work as the zoom.
It's the ribbon.
(View tab | Zoom group)
Click on view tab on the ribbon menu bar, then select 100% from the Zoom section.