FreshService claims that "We want you to stay with us because you love Freshservice. Not because your data is stuck. You can export everything anytime.", however, it is currently not possible to export the single type of information that makes the CMDB component of the app useful: Relationships.
It is possible to export all Configuration Items (CIs), and it is clear in the XML that those items have unique ID numbers, so all it would take is an additional XML (or even .txt) file in the export to provide:
1) A list of relationship types as defined in the customer's instance, and their associated UIDs (for example: <relationship type> <relationship type uid>1</relationship type uid> <relationship type description>Uses/Used by</relationship type description> </relationship typo>)
2) A list of relationships in the form of <relationship> <relationship type uid> relationship_type_uid</relationship type uid> <left CI>left_CI_UID</left CI>, <right CI>right_ci_uid</right CI> </relationship>
If implemented, this feature would make the valuable relationships in the CMDB exportable and would make the marketing claim listed above truthful.
