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Troubleshooting

Fix Corrupted AI PowerPoint Files

Updated October 2026

If you're seeing “PowerPoint found a problem with content” repair dialogs from other AI presentation tools, first check the simple cause: a file from a download or email may be blocked by Windows (right-click → Properties → Unblock). When the cause is in how the file was built, so is the fix.

Why AI Presentations Get Corrupted

Some AI presentation tools build slides as HTML web pages first, then convert that HTML into .pptx. When that conversion is imperfect, the output can be malformed Office Open XML — which PowerPoint flags as corrupted content requiring repair.

Common Symptoms

  • "PowerPoint found a problem with content in [filename].pptx. PowerPoint can attempt to repair the presentation." 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.

Native PPTX built to open without repair dialogs
Editable charts with real data
Widely installed fonts by default
Correct slide master references
Native image embedding (not base64)
Valid Office Open XML structure

How to Switch from a Broken Tool

  1. 1Copy the text content from your corrupted presentation (or use the original source document)
  2. 2Upload the source document (PDF, DOCX, or text) to Dekked
  3. 3Add a sentence about the deck you need: who it is for, and what it should lead with
  4. 4Generate the deck. Paid decks download as a native .pptx built to open cleanly; your first deck is free and watermarked

Related guides

Files built to open cleanly

Paid Dekked decks are native PPTX files built to open cleanly in PowerPoint, Google Slides, and Keynote.

Try Dekked free

Your first deck is free (watermarked). Paid decks, from $1.99, are native, editable .pptx files. See pricing