PowerPoint File Size Doubles After Saving on macOS Sonoma

Copper Contributor

Hello,

 

I recently upgraded my Mac to macOS Sonoma, and I’m experiencing an issue with Microsoft PowerPoint. When I open a PowerPoint file of approximately 60MB in size and then save it again, the file size increases to about 100MB without any changes made to the content. This issue didn't occur prior to the macOS upgrade.

Here are some additional details:

  • macOS version: Apple M2 Pro - 14.6.1 (23G93)
  • PowerPoint version: Microsoft® PowerPoint for Mac - Version 16.88.1 - Microsoft 365 Subscription
  • File format: .pptx
  • The file contains images and media, but no changes were made to them before saving.

Could you please assist me in resolving this issue?

Any guidance or troubleshooting steps would be appreciated.

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