libsigrok supports a number of different input modules (a.k.a. file formats) and output modules, and has a generic API which allows easily adding more input/output modules.
Supported input/output formats
Supported transform modules
|| Do nothing.
|| Scale analog values by a specified factor.
|| Invert values.
Possible candidates for future input/output formats
|| Used by the IKALOGIC Scanalogic-2 and IKALOGIC ScanaPLUS logic analyzers.
| Rigol ROF
|| Used by the Rigol DP800 series power supplies.
| Rigol RAF
|| Used by the Rigol DG1000Z, DG4000, and DG5000 series signal generators. See DG1000Z User Guide page 2-75, also this post at eevblog.
| Vector MDF (v3.3) / ASAM MDF (v4.x)
|| Automotive industry standard format. Docs can be found here and here. Validator is here. Some code is here and here.
|| File format used by devices in power engineering (e.g. protective relays, fault recorders). Can contain digital and analog data with constant or variable sample rate.
|| Trivial file format that can be used to define the signal of voltage/current sources in a SPICE simulation.
| Tektronix WFM
|| Used by the Tektronix TDS series oscilloscopes. A parser for Matlab can be found here.