| pd4 | Windows Live Photo Gallery Information |
| pd5 | DFSee Partition Data |
| pd5 | Windows Live Photo Gallery Information |
| pd6 | Lacerte Tax Data |
| pd9 | PADS Layout Library PCB Decal Data |
| pdas | PDAStore Data Store |
| pdata | JSim Pretty Data Format |
| pdb | Brookhaven Protein DataBase |
| pdb | CYANA PDB Coordinate File |
| pdb | DL_POLY PDB Trajectory Data |
| pdb | Protein Data Bank |
| pdb | Ribbons Protein Databank |
| pdb | Sybase PowerDesigner Physical Data Model Backup |
| pdbx | SunGard Martini Personal Database |
| pdcdm | Sybase PowerDesigner Conceptual Data Model |
| pde | AFP Page Definition |
| pde | FlexPDE Script |
| pde | Pathology Data Exchange File |
| pdef | Protean Data Exchange Format Data |
| pdex | Orient Computer Encrypted Data |
| pdg | Print Designer GOLD Data |
| pdic | Personal Dictionary Database |
| pdj | Pioneer CDJ-1000MK3 Index Data |
| pdm | Sybase PowerDesigner Physical Data Model |
| pdoc | SAM grabdp Data |
| pdom | Eclipse IDE PDOM Index |
| pdpcmd | Pdplayer Command |
| pdpcomp | Pdplayer Composition |
| pdr | Mail.dat Piece Detail File |
| pdrp | DNA Screening Crystals Data |
| pdt | GEUS Polar Data |
| pdtex | PDF-XChange Editor Data |
| pdtt | STK Processed Terrain File |
| pdu | SMS Protocol Description Unit |
| pdv | Velocity Process Data |
