How to use Spell Check?

1. Select the range you want to check for misspelt words in and click on the Tools menu.
   
2. Hover over the Spelling option, and click on Spell Check.
   
3. In the side pane, check for any misspelt words and change them if needed.
   

How to change the spellings to the one of the suggested spellings?

1. Click on the suggested word you want to change the spelling of.
   
2. Click on the suitable suggestion with the correct spelling.
   
3. Click on Change. 
   
4. If a word is misspelt the same way across the spreadsheet in multiple places, you can click on the drop down near the change button, and choose to Change All. 
   

How to change the language of the dictionary?

To change the language, click on the Dictionary icon  on top of the side pane. From the languages listed, choose the language you want.

How to add words to the personal dictionary?

1. Click on Tools.
   
2. Hover over the Spellings option and click on Personal Dictionary.
   
3. Type the word you want to in the text box, and click on the plus symbol next to it.
   
4. You can see the word being added to the personal dictionary, along with other words in it below the text box. You can hover over a word, and click on the minus symbol to remove the word from the personal dictionary.