Importing Spaces
Importing Confluence Spaces into your environment.
When moving a site from one environment to another (such as from staging into production), you will need to import any content contained in spaces.
Navigate to General Configuration in the Confluence Administration screen
Click on Backup & Restore under Administration in the left hand column of options:
Scroll down to the Upload area
Browse to select your export file
Click the "Choose File" button to navigate to the desired space export (zip file).
Click Upload & Import
Read more from Atlassian about importing spaces: Restoring a Space