I work with a large organization in which various groups create and use their own SharePoint sites. One group has created a SharePoint calendar that is very elaborate for their own site, and our group would like to create and use one exactly like it. Is there a way to duplicate, reuse, or import an existing calendar app from another SharePoint site without having to recreate it from scratch?
You can use list template to copy a list from one site to another:
Save the calendar list as a list template via
CALENDAR > List Settings > Save list as template. Select Include Content if you want to carry the events as well.
When it is finished, navigate to
Site Settings > List templates(or just click list template gallery on the page), select the list template you just created and download a copy to local drive.
Navigate to another site, go to
Site Settings > List templatesand then upload the list template copy.
Add the calendar list via
Site contents > New > App> search for the list template and click on it.