I have not found a simple way to open this file type in base.
Is this possible?
And/Or is this in development?
Thanks
Please tell us your operating system.
As I understand it, that is a MS-Access db. As I understand it, LO can NOT open that type of db (no filter).
It depends on the operating system. When you are on Windows, you can use them. Searching for accdb here or in the Wiki should result in solutions; e.g. How to connect to a Microsoft Access database - The Document Foundation Wiki I have no experience, what is possible in Linux or on Mac.