Google Docs is great, but because it requires internet connection to use. If you're using Google Chrome, go to official extension named Google Docs Offline Changes that.
Note: Using Google Docs offline requires Google's official Chrome extension, so you can only use it in Google Chrome. It works for Docs, Sheets, and Slides, but not Forms.
How to Use Google Docs Offline
First, you'll need to install the Chrome extension Google Docs Offline. After installing it, you'll be putting things up for offline use. Google apps, so you do not need to go to any app to enable it.
We're working on Google Docs in our example, but it works the same in Slides and Sheets. In the app, click on the hamburger icon in the top left corner, and then on "Settings."
In the Settings window, toggle the "Offline" switch
Doing this enables offline mode across all Google Drive applications (Docs, Sheets, and Slides).
In an attempt to save space locally, Google Docs only saved recently accessed files locally for use offline. [Offline]
Now when you open the file in offline mode, a lightning bolt
You can now create, open, and edit any files without connecting to the internet. The next time your computer connects to a network, all the changes you made are synced to Google's servers.