All Office programs can check the spelling and grammar of your files. You can check spelling and grammar all at once by running the spelling and grammar checker, or you can check spelling and grammar automatically and make corrections as you work.
Office marks potential spelling errors with a red squiggly line:
Potential grammatical errors are marked with a blue squiggly line:
Right click on the underlined word and you will see suggestions to correct the error, select the right word and click this will the update on your screen to the correct spelling etc.