Your collaborators and viewers will not be able to see any of your edits made offline until you're back online and Google Docs has synchronized with the server. To access a document you edited offline, and sync changes you've made, just open Google Docs in the same browser on the same computer that you used when working offline. In your Docs list, you'll notice that 'Edited offline' appears next to those documents.
In the case where your edits conflict with another collaborator's, you will see the message below. If you'd like to keep your changes, you have the option of copying them into the document. Also, you can click 'Show differences' to compare different revisions and revert to the one you want.
