How to manually format date in excel to mmm-yyyy

Question

How to manually change date format in Excel to mmm-yyyy

Answer 1

Select the cell or cells that you want to format.

On the Home tab of the ribbon, click the arrow in the lower right corner of the Number group.

Select Custom in the Category list.

Enter mmm-yyyy in the Type box, overwriting whatever it already contained.

Click OK.

Answer 2

I had to go to the control panel to fix this as there was not a type box for me to insert the format I wanted. Thank you.

Answer 3

I had to go to the control panel to fix this

Very bad idea, because that affects all applications!

Here's the article how to reset the settings:
System settings - How to import a CSV file that does not match your - Microsoft Community

Andreas.