Opening files from your app in Office for iOS and Office for Android

In order to invoke Office for iOS or Office for Android when opening an Office file from your app, you must use the URL schemes that Word, Excel, and PowerPoint for iOS or Android register when they are installed.

URL schemes for invoking Office for iOS and Office for Android

The following is the list of scheme names used to invoke :

  • ms-word:

  • ms-powerpoint:

  • ms-excel:

The following information must be included along with the URL scheme:

  • The mode to open the file in. Valid values are:

    • ofv for opening as read-only

    • ofe for opening for editing.

  • The WOPISrc to the file, denoted by the |u| parameter

  • The service identifier, denoted by the |d| parameter

  • The user identifier, denoted by the |e| parameter

  • The file name, with extension, denoted by the |n| parameter

  • The source of the open action with |a|. The value of this parameter can be either:

    • Web – to be used in the case where a website is invoking the protocol handler

    • App – to be used in the case where a native app is invoking the protocol handler



The URL used should be URL encoded.

Note that the file is opened directly against your service. Your app essentially passes the URL to the file to Office for iOS or Office for Android without passing the actual file. The Office for iOS or Office for Android app then opens the file directly using the WOPI protocol.

Identifying supported Office for iOS versions

Before using the URL schemes specified above to invoke Office for iOS, you must do the following:

  1. Verify the particular Office for iOS application (Word, Excel, or PowerPoint) are installed.

    Use the iOS canOpenURL method to determine whether your application can open the resource. This method takes the URL for the resource as a parameter, and returns No if the application that accepts the URL is not available. If canOpenURL returns No, you’ll need to prompt the user to install Office for iOS. Contact Microsoft to obtain links to install Office for iOS specific to you.

  2. Check the version of Office for iOS installed is a supported version. This is done by verifying whether the following URL schemes are registered:

    • ms-word-wopi-support-1605

    • ms-powerpoint-wopi-support-1605

    • ms-excel-wopi-support-1605


    These URL schemes are only used to check if the currently installed Office for iOS supports opening files from a WOPI host and not for invoking the Office for iOS apps.

(Optional) Passback protocol for Office for iOS

If you want Office for iOS to return users to your iOS application when they choose the in app back arrow (distinct from the iOS back control), you will need to include the passback parameter when invoking Office for iOS. This is denoted by |p| followed by your app’s registered URL scheme (without a colon).

You must ensure that your application can properly handle the response from Office for iOS.


You’ll provide your app’s registered URL scheme during the initial integration phase.

For security reasons, Office for iOS only returns users to the referring application if the file opened successfully. When the user chooses the back arrow, Office for iOS responds to the invoking application with the passback protocol, open mode, URL, upload pending status, and document context. The upload pending status uses the descriptor |z|, and is either yes or no.

document context is a string you provide via the |c| parameter when invoking Office for iOS. Office for iOS doesn’t use this parameter; it is purely for your use, as needed by your app. Office for iOS does not limit the length of the string beyond any limits imposed by the operating system.

Schema format invoking your app when user chooses back:

<app protocol>:ofe|u|<URL>|z|<yes or no>|c|<doc context>



Office for Android Promotion guidance

Step 1 - Verify that Office has been installed

Your referring application will first need to verify that a particular Office application is installed. The following Office applications can be installed on Android devices for document viewing and editing:

  • Excel

  • PowerPoint

  • Word

Use Android PackageManager to determine whether a particular Office application is installed on the device. The following table lists the package names for the Office applications that you can use in this process.


Package Name




If yes Office is installed, go to Step 2a. Else go to Step 2b/2c.

Step 2 - Integrate promotional logic in your app

Step 2a - When Office apps are installed - Check version of Office apps

  • Make sure Office apps are greater than 16.0.XXXX.XX version.

    Note: Exact Version number will be provided by Office on Android team.

  • Guidance to determine Office application version number

    Use Android PackageInfo to determine whether a particular version of Office application is installed on the device


PackageInfo pInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
String version = pInfo.versionName;

Step 2b - When Office apps not installed - promote via Google Play store

Use adjust URLs to throw market intent to install Office apps. These links will be created by Office Android team for you. These links will redirect to following Google Play store page for corresponding Office apps.


Google Play Store




Step 2c - When Office apps not installed - promote via China stores

In China, Office apps are uploaded on following app stores. Since Google Play is not supported in China, app installs would happen from one of the following app stores.











Note: Vivo Store - Coming Soon

Following guidance demos Tencent integration. These guidelines can be modified as needed for any other China specific WOPI integration.

Tencent will need to launch the market intent by showing only those app stores where Office apps are present. In order to also track the number of launches in promotional flow, we will make a call to tracking URL (i.e. adjust URL). Following guidance goes over special handling to make a call to tracking URL (i.e. adjust URL) first, and then show the valid list of app stores for app installations.


  1. Working prototype for this is present here:

  1. Please change following variable values as per guidance from Office for Android team.