Archiving your library saves all stories in it to a single file. You can use an archive as a way to back up your work, or to move your library between computers or different web browsers.
To create an archive, choose the Archive button under the Library top toolbar tab. You'll be asked where you'd like to save this file, and by default its name contains the date and time when you created the archive.
To export a single story, select it and choose Publish to File from the Build top toolbar tab. You'll be asked where to save this file.
This file can be either opened directly in a web browser to play your story, or imported into Twine.
The other buttons under the Build tab work the same as they do in the Story Map Screen.