Which file format is used to save a PowerPoint presentation for viewing without PowerPoint software?

Explanation

PDF format preserves your presentation exactly as designed. Anyone can open PDFs without PowerPoint using free PDF readers. This makes sharing presentations universally accessible.

PPTX and PPT require PowerPoint to open. PPSX is a slideshow format that also needs PowerPoint. PDF is the only truly universal option.

Save as PDF when sharing presentations for viewing only. Recipients see your work perfectly regardless of their software.