PowerPoint should show the first-time welcome screen and your recent documents will no longer be pending upload. If you wish to undo this change, move the Data folder from the trash back into the /Library/Containers/com.microsoft.Powerpoint folder from step 3.
A screenreader will read out the content on your PowerPoint slides in the order they were added to the slide, and not necessarily in a logical order, the order you intended for, or even the order content appears in. This can happen if you have used a built-in template and made design adjustments but not in the Master Slide (microsoft.com), added more contents than the template was intended for, or began creating your slides from scratch.
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