Microsoft Office Specialist (MOS): Complete Guide 2026
Validate your Microsoft Office skills with the world's most recognized productivity certification.
What is MOS Certification?
Microsoft Office Specialist (MOS) certification validates proficiency in Microsoft Office applications including Excel, Word, PowerPoint, Outlook, and Access. It's the most recognized certification for office productivity skills worldwide.
MOS certification demonstrates you can use Office applications at a professional level, making it valuable for administrative, business, and analyst roles.
Quick Exam Facts
- Duration: 50 minutes per exam
- Format: Performance-based (in-app tasks)
- Passing Score: 700/1000
- Cost: $100-150 USD per exam
- Prerequisites: None
- Versions: Microsoft 365 Apps or Office 2019
Available MOS Certifications
| Application | Levels Available |
|---|---|
| Excel | Associate, Expert |
| Word | Associate, Expert |
| PowerPoint | Associate |
| Outlook | Associate |
| Access | Expert |
Excel Associate Topics
- Worksheet and workbook management
- Data cells and ranges
- Tables and table data
- Formulas and functions
- Charts and objects
Excel Expert Topics
- Advanced formulas (XLOOKUP, INDEX/MATCH)
- PivotTables and PivotCharts
- Advanced charts and formatting
- Macros and form controls
- Data analysis features
MOS Expert Certification
To earn the Microsoft Office Specialist: Expert credential, you must pass:
- Excel Expert OR Word Expert exam
- Plus any two Associate-level exams
Study Resources
- Microsoft Learn: Free official training
- GMetrix Practice Tests: Simulated exam environment
- LinkedIn Learning: Video courses
- Hands-on practice: Use Office daily
Career Impact
- Salary boost: 10-15% higher than non-certified
- Administrative and Office Manager roles
- Data Analyst positions (Excel Expert)
- Required for many business positions
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