Fix Shrink Issue in Word

I need a Microsoft Word expert to resolve an issue where all my documents are opening in a shrunken format. Attached is a sample shrunken 1-page WORD document from my MAC Desktop Computer.

Requirements:
- Expertise in Microsoft Word
- Ability to diagnose and fix formatting issues
- No recent changes made by me, so the issue is likely a software glitch

Ideal Skills:
- Advanced knowledge of Word settings and configurations
- Experience troubleshooting Word-related problems
- Quick response and resolution needed

Please provide a step-by-step solution or remote assistance to fix this issue.