The repository list files ((SiteList.xml and SiteMgr.xml) contain the names of all repositories you are managing.
The repository list include the location and encrypted network credentials that managed systems use to select the repository and retrieve updates. The server sends the repository list to the Trellix Agent during agent-server communication.
If needed, you can export the repository list to external files (SiteList.xml or SiteMgr.xml). The two files have different uses:
SiteList.xml file
Import to a Trellix Agent during installation.
SiteMgr.xml file
Back up and restore your distributed repositories and source sites if you have to reinstall the server.
Import the distributed repositories and source sites from a previous installation of the ePO - On-prem software.