| psf | Parallels Desktop Shared Folders Data |
| psf | PowerArchiver Skin Data |
| psfg | Nuance Speech Recognition Engine Grammar File |
| psg | AFP Page Segment Resource |
| psh | Punch! Home Design CAD Data |
| psi | Affymetrix Probe Set Information |
| psin | PS-GVB Chemical Modeller Input Data |
| psivec | SUPPA diffSplice Output Data |
| psj | PLUS-Slitting Binary Job |
| psjob | Microsoft Photosynth Job Data |
| psl | MasterCook Layout Data |
| psl | MicroSim PCBoard Padstack Library |
| pslic | PureSync License Data |
| psml | PSML Page Definition |
| psmodel | Delcam PowerSHAPE Model |
| psn | OptionVue Portfolio Manager Positions Data |
| pso | DreamPlan Home Design Software Data |
| psod | Roxio Easy Media Creator Album Data |
| psout | PS-GVB Chemical Modeller Output Data |
| psp | OvenWATCH Paste File |
| pspautosave | Paint Shop Pro Autosave Data |
| pspbumpmap | Corel Paint Shop Pro Bumpmap |
| pspcache | Corel Paint Shop Pro Cache |
| pspgradient | Paint Shop Pro Gradient Data |
| psppalette | Corel Paint Shop Pro Palette |
| pspselection | Corel Paint Shop Pro Selection |
| pspshape | Corel Paint Shop Pro Shape Data |
| pspworkspace | Corel Paint Shop Pro Workspace |
| psr | Famous Report |
| psr | PowerSoft Report |
