Chromebooks haven’t a lot of internal memory, so all docs are automatically saved at your address on the Cloud, unless you’ve reset the default settings. There should be an icon on your desktop to access the Cloud. If not, then there should be another to access the Chromebook app store, or Chromebook Help. If not…
These might help you get the info you need to recover your docs:
Alt + E – Open the Chrome browser’s menu. ... search for something that will give you Cloud access.
Alt + 1–8 – Launch applications located on Chrome OS’s “shelf,” or taskbar.
On a Chromebook keyboard, the Search key is located on the side, where you would normally find the Caps Lock key. If you are using a regular keyboard, the Windows key in between Ctrl and Alt will work as the search key. To turn Caps Lock on temporarily, press Alt + the search key.
Then search for your docs by either their file extension (e.g. .docx, .docm) or by the names you’ve given to each document. List of Microsoft Office file extensions Chromebook file extensions are found under OOXML (Office Open XML)
Here is the online Chromebook Help library opened to Open and edit Office files on your Chromebook
Save a shortcut to Chromebook Help on your desktop. You may need it again.
And get yourself an external hard drive with a mini USB cord for Chromebook, or a mini USB flashdrive. They are cheap. You can get 64 gigs for less than twenty bucks at Walmart. That is enough memory to store all the texts in the Library of Congress. Save your docs on that, so you can access them when offline.
The Cloud has proven to be a disappointment to many for various reasons. It is best to have backup storage of your own.