Office Online

New cloud storage options for Office mobile and Office Online

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Today’s post was written by Kirk Koenigsbauer, corporate vice president for the Office team.

In February 2015, we announced the Cloud Storage Partner Program (CSPP) and enabled cloud storage providers to connect their services to Office Online and Office for iOS. Today, we’re making Office even easier for customers to use with cloud storage providers by adding real-time co-authoring with Office Online for documents stored in partner cloud services, extending our Office for iOS integration to all partners in the CSPP, and enabling integration between and cloud storage providers Dropbox and Box.

Real-time co-authoring with Office Online for docs stored in partner cloud services

New cloud storage options for Office mobile and Office Online 1

Since 2013, we’ve offered real-time co-authoring with Office Online documents stored in Microsoft OneDrive and SharePoint Online. Today, we are extending this capability to cloud storage providers in the CSPP program. Real-time co-authoring with Office Online is now available for users whose documents are stored in Box, Citrix ShareFile, Dropbox and Egnyte. Also starting today, any other partner in the CSPP program can enable real-time co-authoring using standard interfaces.

Enabling partners to integrate with Office for iOS

New cloud storage options for Office mobile and Office Online 2

We received lots of enthusiastic user feedback on our iOS and Android integration with Dropbox, which enables users to access, edit and share Dropbox files from the Office apps. You asked us for more choices and we’re happy to announce additional options!

Starting today, in addition to Dropbox, we’re offering all CSPP partners the opportunity to tightly integrate with Office for iOS. This integration lets users designate these partner cloud services as “places” in Office, just as they can with Microsoft OneDrive and Dropbox. Users can now browse for PowerPoint, Word and Excel files on their favorite cloud service right from within an Office app. They can open, edit or create in these apps with confidence that their files will be updated right in the cloud. Users can also open Office files from their cloud storage app in Office, then save any changes directly back to the cloud. We’ll follow with other mobile platforms later this year.

This integration is now also available with Box—with partners including Citrix ShareFile, Edmodo and Egnyte coming soon. Download the iOS Word, Excel and PowerPoint apps now and give it a try.

Dropbox and Box integration with

New cloud storage options for Office mobile and Office Online 3

The Outlook apps on iOS and Android have long provided support for Dropbox, Box and OneDrive for sharing and accessing your digital content. The Dropbox and Box integrations are now coming to to complement our existing OneDrive support. In the coming weeks, users of the new can attach files from Dropbox, Box and OneDrive right from their inboxes and they have the option to send these files either as traditional attachments or as cloud-based links.

Today’s interoperability announcements are another step in our journey to make Office more open for customers and partners. If you’re a cloud storage provider, visit our CSPP site to learn more about how to join the program and take advantage of these new capabilities.

Thank you for using Office and please continue to share your feedback and requests at Office UserVoice.

—Kirk Koenigsbauer


Join the conversation

  1. Nice service!
    Will this work with Office 365 Business as well?

    I’m looking for using Onedrive instead of Onedrive for for Business.

    • If you are using the Office 365 Business subscription, you can add the personal OneDrive location to the desktop applications now by adding the Microsoft Account associated with the personal OneDrive you want to use. Unfortunately, adding the personal OneDrive location is not yet available in the Online Apps from Office 365 Business subscriptions, as far as I can tell. I tried to add my personal OneDrive location in the Online Apps, but was unable to. There is a setting for Office Online (under Service Settings) to enable the online apps to open supported files from third party hosted storage, but have been unsuccessful with this. Not sure if this feature is fully turned on yet…

  2. I am guessing this will not apply for OneNote, right? As there are some server related features involved like online OCR.

  3. One question for Microsoft: When on earth are you going to integrate Office Online with Google Drive? Half of my high school’s student population and teacher population’s usin’ Google Drive and Google Docs, Sheets, and Slides is a pain in the butt for me to use. I only use Microsoft Office! When on the planet of gods is there going to be integration with Google Drive?

    • I’d like to see this too. Google Drive integration in the Office IOS apps is clunky to say the least. It would be nice to have full read and write functionality without all this “Open in…” “Save duplicate…” Nonsense. A lot of the time trying to save a Word doc opened from Google Drive on the iPad results in it saying it saved, whereas in fact it hasn’t meaning lost work. Lots of frustrated Google Drive users here at work who would love to use Office for IOS but being forced to use Google Apps because of these problems.

  4. When will this feature be available in the desktop versions of Word, Excel and PowerPoint?

  5. The Outlook app for iOS is amazing. It’s 10x better than anything else and proves to me that Microsoft has truly bad ass developers. One minor feature request…I’m using it on iPad pro with the apple keyboard. In the inbox view, I’d love a keystroke to archive the email that’s selected and in view on right window. Command+A seems like an easy, obvious choice to archive an email with a keystroke instead of making me tap the screen. Thank you for an awesome piece of software!!!

  6. Looking good! Please consider adding “(Office 365)” after “OneDrive for Business” in the “Add a Place” dialogue. The distinction between OneDrive and OneDrive for Business might be super clear to some of us, but your customers still need to write end-user instructions and guides for people to understand this. Such parantheses next to one of the options could save the day for an end-user. Thank you.

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