In 2022, LHCb has released the first 200 terabytes of the data via CERN OpenData Portal, making it available to the public.
.MDSTformat, the same format is used by LHCb internally.
The metadata provided should help the user to navigate, select and work with with LHCb Open Data.
Index of files is accessible both via a GUI or as a machine readable file.
.rootformat (called ntuples).