Kingsoft Office 2013 has a built-in English dictionary for spell checking American English. However, if you need spell check for specialized English vocabulary, you can add a dictionary to it. Please take the following steps to prepare dictionary files and import them to Kingsoft Writer/Spreadsheets/Presentation.
Search for dictionary files in search engines and download it. Save the dictionary file (with .DIC as the extention) in the same directory as CUSTOM.DIC, namely, for Windows 7 system, C:\Users\Administrator\AppData\Roaming\kingsoft\office6, and for Windows XP, C:\Documents and Settings\Administrator\Application Data\Kingsoft\office6.
This new dictionary file can be used for check spelling in all the three components of Kingsoft Office 2013. However, only saving it in the correct directory is not enough, you have to change the dictionary link in each program.
Step 1 Open Kingsoft Writer 2013, and click the File Menu . On the drop-down list, press Options button in the lower right corner. In Spreadsheets and Presentation, do the same as in Writer.
Step 2 In the pop-up options window, select "Spelling" > "Custom Dictionary" (Figure A). When a dialog box appears, click on "Add" and another dialog box pops out. Find the dictionary you want to add and select it. After that, press "Open". Finally, tap "Set Default" on the left of the custom dictionary dialog box.
Step 3. Reopen the Kingsoft Office and input words, then press F7 or click Check Spelling.
Note: Don't forget to backup the American English .dic and .aff file, in case you want to check English spelling sometimes.