: You do not need to install SP1 or SP2 beforehand; SP3 includes every public and security update released through September 2011.
Rather than introducing flashy new features, SP3 focused on refining existing workflows and squashing long-standing bugs: 2007-sp3
While the tech world often chases the newest software, many stable environments still rely on the proven Microsoft Office 2007 suite. Released in late October 2011, serves as the definitive final major update for this ecosystem, consolidating years of improvements into a single, cumulative package. What is 2007 SP3? : You do not need to install SP1
For IT administrators, Exchange Server 2007 SP3 (released earlier in 2010) was equally vital. What is 2007 SP3
: A critical fix was implemented for crashes occurring when Microsoft Excel 2007 tried to open books saved in newer versions that used unsupported features.