pptx can be previewed, but ppt cannot be previewed and only displays the title

[dihaoshen]

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Describe the bug
pptx can be previewed, but ppt cannot be previewed and only displays the title

To Reproduce
Steps to reproduce the behavior:

1. Install the msi version of quicklook
2. install QuickLook.Plugin.OfficeViewer.qlplugin

Expected behavior
pptx can be previewed, but ppt cannot be previewed and only displays the title

Desktop (please complete the following information):

• Windows 10
• QuickLook Version: 3.7.3 of msi

Screenshots and Exception Log

[emako]

I have no problem using it.

I think it depends on your version of office and whether the registry is contaminated

[dihaoshen]

This is the difference between my ppt file and pptx file versions. I don't know if it is related to this. In addition, both ppt and pptx can be previewed in the file explorer.

[emako]

1. What is your version of Office?

2. To check PPT Registry, open the Registry Editor and look for the .ppt key under Computer\HKEY_CLASSES_ROOT\.ppt.
   If it exists, export it to a .reg file for further inspection.

A normal registry should look like this

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.ppt]
@="PowerPoint.Show.8"
"Content Type"="application/vnd.ms-powerpoint"

[HKEY_CLASSES_ROOT\.ppt\PersistentHandler]
@="{98de59a0-d175-11cd-a7bd-00006b827d94}"

[HKEY_CLASSES_ROOT\.ppt\ShellEx]

[HKEY_CLASSES_ROOT\.ppt\ShellEx\{8895b1c6-b41f-4c1c-a562-0d564250836f}]
@="{65235197-874B-4A07-BDC5-E65EA825B718}"

[dihaoshen]

This is my version of office, and below is my registry information

I tried to change the registry to look like yours, but like before, I couldn't preview it.

[emako]

It seems that your Office was installed based on APPX, so ShellEx is missing. Try to add it.

Save following as a .reg file and double click to run it.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.ppt\ShellEx\{8895b1c6-b41f-4c1c-a562-0d564250836f}]
@="{65235197-874B-4A07-BDC5-E65EA825B718}"

[dihaoshen]

This is the modified registry information, but ppt still cannot be previewed. After that, I tried to restart my computer, but I still couldn't preview ppt


pptx can still be previewed.

[emako]

That should not be supported by third-party previews.

I don’t have any idea how to implement the preview of the appx version.

You may need to change the office version

[dihaoshen]

Thanks, I'll try again