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In the Office.js docs one reads the following about the new ExecuteAsync() method/pattern:

"This also allows us to use the same APIs even outside of an Excel add- in. Imagine, for example, that you wanted to call Excel APIs against an > Excel workbook stored in OneDrive, but you wanted to do so from a stand-> alone web application, rather than one running inside Office 2016 for Windows or Office Online. This async model lends itself well to that capability."

Nevertheless, I wasn't able to find any explanation on how to implement such functionality in a standalone web application. Does anyone know how to do that?

cmlima
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1 Answers1

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This is referring to the new Excel REST API. Please see the documentation here: http://graph.microsoft.io/en-us/docs/api-reference/v1.0/resources/excel

Excel is so far the only Office host to support REST APIs, with the exception of OneNote's REST APIs which are independent from the Office.js effort.

Harrison Shapley
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  • Anything else in development? I was really hoping for a solution that combines the power of Office.js with the deployment flexibility of the EWA Namespace (e.g. https://msdn.microsoft.com/en-US/library/hh315812.aspx). The REST API has limitations (no events, performance lag). Why can't Microsoft just replace the EWA namespace with the more powerful Office.js Excel API? – Andrew Hall Sep 12 '16 at 00:29
  • We are investigating how to best serve this scenario. So please stay tuned, and I will update this thread when we have news to share. – Michael Zlatkovsky - Microsoft Sep 15 '16 at 00:39
  • @Michael, that is fantastic to hear. Or better yet, how about using Azure AD and Graph to get the sessionID of a workbook serverside (https://graph.microsoft.io/en-us/docs/authorization/app_authorization and https://graph.microsoft.io/en-us/docs/api-reference/v1.0/resources/excel) then allow the Office.js Excel (and Word, etc.) APIs to control that sessionID? I think this could be very powerful (yet secure?) and would sidestep the limitations of Add-Ins. – Andrew Hall Sep 15 '16 at 14:44
  • @MichaelZlatkovsky-Microsoft, any updates on this? Is this related: https://stackoverflow.com/questions/44989152/check-if-office-js-is-loaded-outside-of-office-client I am very interested in replacing EWA namespace with Office.js, but I don't see how yet? – Andrew Hall Jul 11 '17 at 03:28
  • hi @MichaelZlatkovsky-Microsoft I just posted another question closely related this topic as this thread was becoming stale – ultrasounder Apr 17 '20 at 18:57
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    @ultrasounder, I have since moved to a different team -- but hopefully someone else from the Office Extensibility team will see your question. Just make sure it's tagged with `[office-js]` – Michael Zlatkovsky - Microsoft Apr 17 '20 at 22:08