Microsoft Office Specialist Certifications demonstrate professional-level skills and knowledge in the Microsoft Office suite of products. Excel Certifications Exams are proctored by Certiport. Find below list of MOS certification. find below the list of excel 2013/2016 Excel Certifications. MOS: Microsoft Office Excel 2013 | Exam Code: 77-420 MOS: Microsoft Office Excel 2013 Expert |Exam Code: 77-427 and 77-428 Excel 2016: Core Data Analysis, Manipulation, and Presentation | Exam Code77-727 Excel Expert 2016: Interpreting Data for Insights | Exam-Code 77-728 Click here to get more details for MOS Certification.