Similar as this: https://powerapps.microsoft.com/en-us/tutorials/control-pdf-viewer/
but for Word and other Office document, and with support for files stored in SharePoint and OneDrive.
Adding @FilipK and @shekz
Yes when we going to have a viewer tool that can simply link to a Sharepoint document library and open on a iPad/iPhone the document in the Powerapp as a viewer? Rather than needing to use complicated resource Hungry flows.
It be great that also if Powerapps could connect to on device storage also - which would mean a user could pre load PDFs etc to the device and then use a well designed powerapp gallery menu would connect to the on device storage so users could browse/search for documents and view them in the Powerapp, while being offline. We have a zillion uses for this in our company where for regulatory reasons we have to have a physical copy on a device and not need to have an internet/cloud connection. At present we resort to using PDF Viewer apps locked down on iPads which is such a waste.
Viewing Word, PowerPoint & HTML files stored in SharePoint in Power Apps
For a native Office files viewer, it'd be very interesting to be able to interact with the document loaded in that viewer. To only e.g. have edit functionalities for a Word file like they already exist in Word Online, but also be able
If you think about it: having the Office VBA Object model accessible in PA would be quite a deal... 😉
(yes, of course, security issues will most probably prevent that, but still some basis similar functions would be great)
This would allow for some pretty advance document assembly functionality as invoice generation, contract drafting & reviewing, quotation & proposal creation, etc.