Hi,
It's very easy to import/export any record in odoo. Odoo provides inbuild feature to import/export any record using CSV/EXCEL file format.
If you want to import/export fleet module data then:
Go to fleet app. Click Import button and click loan file and select excel file and after loading file just select excel file columns for odoo record column relation and click import to import records.
To export records, select tree view for vehicle, and select records you want to export and select Export option from Action and select columns and file format and your data will downloaded..
Accept and upvote answer if helpful
Thanks and regards
Haresh Kansara