If you're going to be away from a reliable Internet connection for a while, you can still work on your files by utilizing Google Drive's offline capabilities. You need to set this up in advance so the necessary caching can be carried out, and you need to be using the Chrome browser: choose the Offline link from the file list to enable the feature. If you haven't already installed the Drive Chrome app, you'll be prompted to do so. If you're running Chrome OS, the feature is enabled automatically.