This document is the User's Manual to FEBio Studio. Although FEBio Studio has been designed for FEBio, it does not describe the FEBio features in much detail. A more in-depth description of the FEBio features can be found in the FEBio User's Manual and the FEBio Theory Manual. These manuals and other helpful material can be found on the febio.org website. See the Knowledgebase in particular.