Click the Office button. Click Excel Options.
![Click the Office button. Click Excel Options.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Custom_Dictionary___Click_Office_Button_Click_Excel_Opt.PNG)
Click Proofing. Click Custom Dictionaries.
![Click Proofing. Click Custom Dictionaries.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Custom_Dictionary___Click_Proofing_Click_Custom_Diction.PNG)
Select the check box next to CUSTOM.DIC (Default).
![Select the check box next to CUSTOM.DIC (Default).](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Custom_Dictionary___Select_Check_Box_Next_To_Customdic_.PNG)
Click the Dictionary language list arrow.
Select a language for a dictionary.
![Click the Dictionary language list arrow. Select a language for a dictionary.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Custom_Dictionary___Click_Dictionary_Language_List_Arro.PNG)
Click Edit Word List to add, delete, or edit words.
![Click Edit Word List to add, delete, or edit words.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Custom_Dictionary___Click_Edit_Word_List_To_Add_Delete_.PNG)
Click Change Default to select a new default dictionary. Click New to create a new dictionary. Click Add to insert an existing dictionary. Click Remove to delete a dictionary. Click OK to close the Custom Dictionaries dialog box.
![Click OK to close the Custom Dictionaries dialog box.](http://www.java2s.com/Tutorial/Microsoft-Office-Excel-2007Images/Use_Custom_Dictionary___Click_Ok_To_Close_Custom_Dictionari.PNG)