: If you already have Office 2013 installed, using the Microsoft Update service is the recommended way to receive SP1 and subsequent security fixes automatically. Alternative Safe Archival Links
Microsoft reached the end of support for Office 2013 on . While they no longer provide active updates, you can still find official service pack installers on the Microsoft Download Center . : If you already have Office 2013 installed,
: You can find various language versions, including English (en), on the Internet Archive . Important Considerations Description of Microsoft Office 2013 Service Pack 1 (SP1) : You can find various language versions, including
Instead, it is safer to use official or well-documented archival sources to obtain Microsoft Office 2013 Service Pack 1 (SP1) and its updates. Official Microsoft Resources including English (en)
If you are looking for the full installation media (ISO) rather than just the service pack update, the hosts verified community uploads of original retail and volume license discs: