If you are looking to change the display language of your Office suite to Croatian, you likely need the Microsoft Office 2013 Language Interface Pack (LIP). This pack allows you to change the ribbon, menus, and help settings to Croatian without reinstalling the entire software.
Here is a guide on how to find, download, and install it safely. microsoft office 2013 croatian language pack free
As a product when it was sold: 4/5 – Solid, professional localization.
Today for most people: 1/5 – Not worth trying to obtain illegally or via shady sites. Upgrade your Office or switch to a free alternative. How to Get the Microsoft Office 2013 Croatian
Security note: I strongly advise against downloading any "Microsoft Office 2013 Croatian Language Pack free" from file-sharing sites, torrents, or warez blogs. These files are often modified to contain remote access trojans (RATs) or ransomware. Fix: Go to Control Panel > Region >