If you need to add text that is in a language other than the one you normally use, Office can check spelling and grammar of that text for you.
If you're looking for information on how to use the proofing tools or turn spelling or grammar checking on or off see: Check spelling and grammar in Office 2010 and later.
Note: If you want to type in a non-Latin-based language, such as Arabic or Chinese, you can switch the keyboard layout with the Language bar. When you change the keyboard layout, Office changes the spelling and grammar language for you. For more information, see Enable or change the keyboard layout language.
To change the language while checking the spelling of a database or workbook, change the dictionary language during the spell-check process:
On the Review tab in Excel or the Home tab in Access, click Spelling.
In the Spelling pane or dialog box, choose the language you want in the Dictionary language list.
Tip: If the spell check doesn't find any errors, you won't get a Spelling dialog box. If that happens when you're trying to change the dictionary language consider intentionally misspelling a word to force the dialog box to appear.
If the language you want is not available, you might need an Office language pack. For more information, see Language Accessory Pack for Office 2016.
If you want to change the default editing language to check the spelling, see Change the language Office uses in its menus and proofing tools.