Eikon is available online, to access this database request an Eikon ID from library@aston.ac.uk and we will email you an Eikon ID username and password. The ID's will have a time limit as there are set number of IDs we have available.
There is an Eikon training portal available at https://training.refinitiv.com/eikon/ this includes video tutorials and an opportunity to work through an online certification programme.
Datastream is available as an Eikon Excel add-in.