Fix Corrupted AI PowerPoint Files
If you're seeing “PowerPoint found a problem with some content” repair dialogs from other AI presentation tools, you're not alone. This is the #1 user complaint in the AI presentation space — and it has a simple cause and solution.
Why AI Presentations Get Corrupted
Most AI presentation tools (Gamma, former Tome, SlidesAI) build slides as HTML web pages, then convert that HTML into .pptx format. This conversion produces invalid Office Open XML — which PowerPoint flags as corrupted content requiring repair.
Common Symptoms
- "We found a problem with some content in [filename].pptx" repair dialog
- Fonts replaced with system defaults (Calibri, Arial) after opening
- Chart/diagram elements converted to flat, non-editable images
- Slide layouts shifted — elements overlapping or misaligned
- Missing images or broken image placeholders
- File size unusually large (embedded base64 data instead of proper assets)
The Solution: Native PPTX Generation
Dekked doesn't convert from HTML. Instead, it builds PowerPoint objects directly using the Office Open XML specification — the same format Microsoft PowerPoint uses natively. Every text box, chart, shape, and image is a proper PowerPoint element.
How to Switch from a Broken Tool
- 1Copy the text content from your corrupted presentation (or use the original source document)
- 2Upload the source document (PDF, DOCX, or text) to Dekked
- 3Review the AI-generated outline and adjust slide structure as needed
- 4Generate and download a clean, native .pptx file that opens without issues
Never see a repair dialog again
Dekked generates native PPTX files that open perfectly in PowerPoint, Google Slides, and Keynote.
Try Dekked — $1.99