5

Pretty self explanatory title.

I've got a Windows 10 machine with the preview pane turned on, because I often have to sort through PDFs. However, large Excel files hog the computer for 3-10 seconds at a time, when usually what I do with them is just copy-pasting them around (no need for previewing them).

Can I only disable excel previews, but still have PDFs previewing regularly?

  • 1
    You could sort the view by file type and avoid previewing the Excel files. – teylyn Jul 2 '17 at 22:18
  • I could, but whenever I click them (to copy them, for example) the explorer hangs for 3-10 seconds. – t0mgs Jul 3 '17 at 16:19
  • Well, then don't use the preview pane with large Excel file. It's that simple. – teylyn Jul 3 '17 at 21:56
9

There is a "Preview Handler" associated with every file extension in the registry, that can be disabled.

The known file extensions are under HKEY_CLASSES_ROOT as ".xlsx" for example. If the extension has a Preview Handler, then there is a subkey always called "HKEY_CLASSES_ROOT\.xlsx\ShellEx\{8895b1c6-b41f-4c1c-a562-0d564250836f}". That subkey has a default value that points to the Preview Handler, if you clear that default value or remove the subkey, the preview for that file extension will be disabled. You could store a copy of that key by going right-click -> Export, so that you can restore the preview handler later if need be.

I gathered this from a Microsoft document here, even though they describe an extra "step" in mapping the preview handler, which i found not to be the case on Windows 7, 10 and Server 2016. Maybe someone can explain/correct this.

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  • Thank you for this -- Excel 2010 has been crashing because of the File Explorer previewer frequently for me. Now I can remove just that previewer and still use the others I want. – user1780242 Oct 4 '18 at 19:23
1

Windows Explorer: Click one of the following: Tools > Folder Options > View or Organize >Folder and search options. Clear Show preview handlers in preview pane.

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  • PS: Can I only disable excel previews, but still have PDFs previewing regularly? the answer is no – leung Jul 19 '17 at 6:59
  • @ leung "Can I only disable excel previews, but still have PDFs previewing regularly?" the answer is yes. In Win10 File Explorer, File>Options>View in Advanced Settings disable "Show preview handlers in preview pane" resulted in exactly this behavior. Excel files no longer open in the previewer and I can still see PDF files in the preview pane. If your results are different than I suspect it is differences in the default PDF viewing program. I use Nuance Power PDF. Your solution worked for me. – ProfoundlyOblivious Jul 24 '19 at 20:10
1

ShellExView is a great utility that allows to do this.

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