Embedding shared instances of collaborative data across different applications

In an implementation, a method includes causing a source application data object to be embedded in a host application file and recording information associated with the source application data object in a common data store. It further includes identifying a modification made to the embedded source application data object, sending a notification to the source application to update a corresponding source copy of the source application data object based on the modification made to the embedded source application data object, and recording the modification in the common data store. The method also includes identifying a change made to the source copy of the source application data object, and causing the host application to update the embedded source application data object in the host application data store according to access permissions of the host application file, and recording the change in the common data store.