The installation must match the bit-version of your installed Office suite (e.g., 32-bit vs. 64-bit).
Add an editing or authoring language or set language preferences in Office
If you’re still using Microsoft Office 2013 and need to work in Slovak, adding a language pack is the best way to get localized menus, help content, and proofing tools. Although Office 2013 reached its official end of support on April 11, 2023, you can still find the necessary files to localize your experience. Key Benefits of the Slovak Language Pack
: Includes the Slovak dictionary for spell check, grammar checking, and the thesaurus. Technical Details & Requirements