Microsoft recommends purchasing a valid license for Office 2013 and activating it through official channels. Using a KMS activator or other third-party tools to activate Microsoft products may be against Microsoft's terms of service.
KMSmicro Activator is a software tool designed to activate Microsoft products, including Microsoft Office 2013, without requiring a valid product key. It uses the Key Management Service (KMS) activation method, which is a legitimate way to activate Microsoft products in a corporate environment. The KMSmicro Activator V.3.12 Final is a specific version of this tool. KMSmicro Activator V.3.12 Final For Microsoft Office 2013