Not a year passed by when the 2013 version of the Microsoft Office 2013 was released after the 2010 version of the Microsoft Office. The first update pack called the Service Pack for Office 2013 is now available for download. For the Office 2010 we have two service packs and waiting for the third one which is supposed to be available when support for Windows XP and Office 2003 will get over.For 2007 version SP1,SP2 and SP3 are available and we might see SP4 soon.
The Service Pack releases for Microsoft products are update packages which includes all the required updates and fixes for the product since it was released till the day the service pack was released. If you had been installing frequent updates for your office 2013 regularly then this update will just install as a regular update and upgrade your product to SP1. The Update can be installed via Windows Update online or if you need the full file for offline installation then get them here —
MS Office 2013 Service Pack 1 Offline (32-bit,644MB)
MS Office 2013 Service Pack 1 Offline (64-bit,774MB)
Just choose your language and click on Download to download the file.You can view the System Requirements which are same as for Office 2013 and yes it requires Office 2013 versions to be installed in your system before you install this update.