Spellcheck puts wavy red underline for each word

[loefflerwm]

After a couple of years of use in Windows 10, the spellcheck does not work in 
this app. Dell Computer Technicians tried to connect OpenOffice with Grammarly 
but could not. They advised I contact you. I want to keep this word program but 
my eyesight is getting worse and many keypad errors are caught by spellcheck - 
at least when it worked. Now every word has a red wavy line underneath.
William Loeffler