When you want to migrate your requirements, test cases, defects and other data from HP/Micro Focus ALM to SpiraTeam, you will need to make sure you have all of the ALM client components installed. However the ALM Components are normally loaded using the insecure Internet Explorer 11 (IE11) web browser. To avoid needing to use this browser, you can use the Micro Focus ALM Client Launcher instead. This article explains how.
You can use the Spira Project Backup & Migration Tool to move projects between one instance of SpiraTest and another pretty easily. However there is a known issue that can sometimes occur if you have deleted custom properties.