Microsoft Office Specialist

The highest level of MOS certification is the Microsoft Office Specialist (MOS) Master. The exams that you need to pass are ones that you might have taken at the Specialist or Expert levels. Unlike those levels, where you could be certified in just ONE app, here you are expected to prove your mastery of four apps, including passing the Expert level exams for Word and Excel.

To be certified as a MOS Master, you must first pass exams for three required Office apps, followed by one exam for your choice of an additional application.
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