You can open files stored in your Syncplicity folders (including those folders shared with you) from within the Syncplicity app. You can also edit specific file types using the Syncplicity app. In addition, you have the option to open and edit files in your Syncplicity folders using other apps.
Editing files within the Syncplicity app
You can edit Microsoft Office files and annotate PDF files within the Syncplicity app, as described in Creating and editing Microsoft Office files and Annotating a PDF document, respectively.
Open in Feature
The Open in feature from the file contextual menu allows you to open the file in any of the apps on your iPad that can open this type of file. Once you tap Open In, you see the list of apps. Select the app that you would like to open the file. The app opens a copy of the file, which is no longer under the control of the Syncplicity app; the original file remains in your Syncplicity account.
You cannot use this feature to edit the file. Furthermore, your administrator may disallow the use of the Open in feature.
Opening and editing files from another app
You can open and edit files stored in your Syncplicity folders from within another app, without ever leaving the app or opening the Syncplicity app. The changes are automatically saved in your Syncplicity folder as a new version of the file.
For example, you can open a file stored in your Syncplicity folder from within a Microsoft Office app, such as Word, edit it then save it. However, you cannot use the Office app to create a new file then save it to your Syncplicity account.
The ability to open and edit files from another app requires that your device be running iOS 8 or later.