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Doc Viewer pptx

Veeramanikandan M (Veera) 0 Reputation points
2025-09-01T07:30:43.1733333+00:00

I am using Microsoft Office Online Viewer (https://view.officeapps.live.com/op/embed.aspx) to display .pptx files hosted on a CDN (Bunny.net).

For smaller files (under 100 MB), the viewer works fine.

But when I try to open larger PPTX files (e.g., 200 MB+), the viewer does not load or gives an error.

My questions are:

  1. Is there an official maximum file size limit for PPTX files when using Office Online Viewer (view.officeapps.live.com)?
  2. If there is a size restriction (e.g., 100 MB or 250 MB), is this documented anywhere?
  3. Is the Office Online Viewer intended for production use with third-party hosted files, or is it only supported for Microsoft 365 services?
  4. Is there any Pro / Enterprise / Paid version of Office Online Viewer that supports opening larger PPTX files (greater than 200 MB)?

Any official documentation link or confirmation would be very helpful.

Microsoft 365 and Office | PowerPoint | For business | Android
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  1. Anonymous
    2025-09-01T09:11:13.1066667+00:00

    Dear @Veeramanikandan M (Veera),

    Thank you so much for contacting Microsoft Q&A Forum. 

    Based on your descriptions, I have researched in all material documents from Microsoft, but there is no official confirmation for this feature. According to this link: Office Web Viewer: View Office documents in a browser | Microsoft 365 Blog, it's a service that creates Office Web Viewer links. We can use it in website or blog (e.g., recipes, photo slide show, a menu, or a budget template) to let users read files online without downloading. In my opinion, this service is free, as it does not allow people edit the Office files. Like no activated Office apps, they are in view only mode.  

    Per my research, Office Online Viewer can help create links for Office file to open Office file in browser. It seems similar to Office for the web. So, in case that you want to use Office for the web, I would like to give you additional information for the file sizes limit for Office for the web is mentioned in this article: What are the file sizes supported by Office for the web? | Microsoft Docs 

    The public viewer (view.officeapps.live.com) is a free service with no paid or enterprise version and it is not recommended for production use. It may be used with third-party hosted files, but it is not officially supported for production use and there is no official support or guarantees for using it in commercial or production – grade applications. Microsoft recommends using Office Online Server or Microsoft 365 integrations for enterprise-grade deployments. You can consult in here for the Office Online Server: 

    If you want to know more information about Office Online Viewer limitations, I sincerely recommend you contact your Microsoft 365 administrator and create a support ticket via Microsoft 365 Admin Center>Support>New service request. The support team over there has more resource for this kind query, they can involve more resource to help you further. This is the most efficient way in handling the case for you. 

    References: 

    I hope this information can give you information about this feature in any way. Besides that, I really want to help as much as I can, but as my forum moderator role, I have limitations in my resources and cannot access the internal databases to help you further. So please kindly reach to Microsoft Support if it is applicable. Also, if I have any chance to have your contribution to our forum, it can help others in our community who find the same problem, and it build our platform stronger every day.  

    Wish you a pleasant day!


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