Support file formats and their extensions.

## Structure

- MMCIF and CIFCORE (mmCIF and coreCIF schemas): cif, bcif, mmcif, mcif
- GRO: gro
- MOL: mol
- MOL2: mol2
- PDB/PDBQT: pdb, ent, pdbqt
- SDF: sdf, sd
- XYZ: xyz


## Topology

Need to be loaded together with Coordinates.

- PRMTOP: prmtop, parm7
- PSF: psf
- TOP: top

## Coordinates

Need to be loaded together with a Structure or Topology.

- DCD: dcd
- NCTRAJ: nc, nctraj
- TRR: trr
- XTC: xtc


## Volume

- CCP4/MRC/MAP: ccp4, mrc, map
- CUBE (may include a Structure): cub, cube
- DSN6/BRIX: dsn6, brix
- DX and DXBIN: dx, dxbin
- DSCIF (DensityServer CIF schema): cif, bcif


## Shape

- PLY