  Exceptional field theories are the manifestly duality covariant formulations
of the target space theories of string/M-theory in the low-energy limit
(supergravity) or for certain truncations. These theories feature a rich system
of sub-theories, corresponding to different consistent truncations. We review
the structure of exceptional field theory and elaborate on various potential
applications. In particular, we discuss how exceptional field theories capture
some of the the magic supergravity triangles, Hull's $*$-theories related to
timelike dualities, as well as the generalized supergravities related to
integrable deformations of AdS/CFT.
