Calc: when returning from print preview the screen data is all very small

In Calc When returning to normal sheet display after doing a print preview the display is very tiny, so small that I can not read the content of the cells. I can find no way to return the display to its usual size.
Unable to reproduce the problem with other documents, so the problem may not be the result of the print preview but something else I did unknowingly. The question remains; how to restore the display to its normal appearance?
Version 6.3.0.4 (x64) Op.system windows 10.

Reason should be ‘solved’

Hello,

Check the Zoom factor on the Status Bar (lower right corner):

image description

If the status bar is not visible, you can turn i on from the menu item View. Can adjust by moving the slider with the left mouse key.

You can also alter the zoom from the menu View->Zoom or holding the control key while using the mouse scroll.

Thanks – why didn’t I see that!!! Correct solution.