WPS Office to Italian, you don't need a separate download; the language pack is built into the global version of the software. You can change the entire interface or just the spell-check settings by following these steps: 1. Change the Interface Language
The WPS Office Italian Language Pack offers a high degree of coverage, though users should be aware of the distinction between UI translation and support resources.
Corrupted language cache or incomplete installation.
WPS Office Italian Language Pack