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We are going to upload the source code for a new extension to view office documents using their free office viewer. The extension will be able to show documents on the server, as well as from a stream allowing you to view office documents from any source (including a database) or to create them on the fly.
The extension shows how to filter all requests to the web server since it needs to change the URL because Microsoft Office Viewer cannot handle sources with parameters.
Forgot to add that the OfficeViewer extension is also secure since the postback URL is bound to the session so your documents are not public. The normal usage of the MS Office Viewer requires the documents to be public.
Activity
itg-assistant commentedon Jun 12, 2026
Luca answered 2017-11-20 17:54:59 UTC
You can use any viewer that works online, here are some.
Microsoft has a free online viewer:
https://products.office.com/en-us/office-online/view-office-documents-online
You can create the URL in the app and assign it to an IFramePanel.
You can also use google docs, or only office (http://onlyoffice.org/ or http://onlyoffice.com).
itg-assistant commentedon Jun 12, 2026
Luca answered 2017-11-21 18:41:26 UTC
We are going to upload the source code for a new extension to view office documents using their free office viewer. The extension will be able to show documents on the server, as well as from a stream allowing you to view office documents from any source (including a database) or to create them on the fly.
The extension shows how to filter all requests to the web server since it needs to change the URL because Microsoft Office Viewer cannot handle sources with parameters.
Small demo: http://demo.wisej.com/officeviewer
itg-assistant commentedon Jun 12, 2026
Luca answered 2017-11-21 18:44:52 UTC
Forgot to add that the OfficeViewer extension is also secure since the postback URL is bound to the session so your documents are not public. The normal usage of the MS Office Viewer requires the documents to be public.
itg-assistant commentedon Jun 12, 2026
Tung Ngo answered 2017-11-22 04:55:55 UTC
Dear Luca,
It’s what I’m looking for. Can not wait to include it to my application.
Regards,
itg-assistant commentedon Jun 12, 2026
Luca answered 2017-11-22 22:18:25 UTC
It's available here: /extensions
The application must be accessible over the internet.
It's not possible to use the office viewer with a server without internet access.
The build uploaded also supports the FileRequested event allowing an app to return any document or stream when requested by the viewer.
itg-assistant commentedon Jun 12, 2026
Tung Ngo answered 2017-12-18 22:36:52 UTC
Could you provide the code for the example http://demo.wisej.com/officeviewer
I don' want to provide the URL of my document to the public Viewer.
Thank You
itg-assistant commentedon Jun 12, 2026
Luca answered 2017-12-19 17:29:58 UTC
Here it is: http://s3.amazonaws.com/wisej/downloads/Examples/Wisej.OfficeViewer.zip
It will not work when running it on localhost since office viewers need a publicly accessible url.
itg-assistant commentedon Jun 12, 2026
Orel Gabay answered 2018-05-22 11:01:50 UTC
hi Wisej Team
Does the OfficeViewer is working?
i'm having problem while testing the example over the internet.
The url example : http://demo.wisej.com/officeviewer
is also broken.
thank in advance ,
Orel
itg-assistant commentedon Jun 12, 2026
Frank (ITG) answered 2018-05-22 16:18:53 UTC
Hi Orel, I have updated the extension download and the version running on our demo wisej server. Please try again. Thanks, Frank