Enable open all file types
Currently OneDrive for Android has an artifical limit on what files you can open. It would be very useful if that block was removed so that any file can be opened as long as there is an app installed that supports that file extension.
For example, currently you cannot open .kbdx files even though you have keepassdroid (http://www.keepassdroid.com/) installed that handles that file extension. keepassdroid is open source so you can check its manifest (https://github.com/bpellin/keepassdroid/blob/master/AndroidManifest.xml) to see that it properly registers to handle .kbdx files and you can verify that it works by opening such a file from for example Google Drive or any file manager that supports local files.
Gregoryanthony Sims commented
How, can I scann documents with Android Cellular Phone
This actually works on my phone. When I mark my .kbdx as available offline on OneDrive, I can actually open the file on keepassdroid. Edit it, save it, and it get synced by to OneDrive.
Actually I m able to open kdbx files but it corrupts it when I try to modify it
André Bloem commented
We really need this function!
This is exactly the reason I keep dropbox around. OneDrive simply cannot fully replace it and misses basic functionality while adding, in my opinion, nonsense features.