| 51. | .pcj | Multimedia authoring tool graphics (IBM's Linkaway-Live) |
| 52. | .pck | Pickfile (Turbo Pascal) |
| 53. | .pcl | HP-PCL graphics data (HP Printer Control Language) |
| 54. | .pcm | Audio file (OKI MSM6376 Sythesizer Chip) |
| 55. | .pcp | Bitmap graphics (PCP file) ◊ Live Update Pro file (Symantec) |
| 56. | .pcs | Animation (Apple Macintosh PICT files) ◊ Picture storage file (Microsoft Powerpoint - Microsoft ClipArt Gallery) |
| 57. | .pct | Bitmap graphics (Macintosh b w PICT1 - color PICT2) |
| 58. | .pcw | Text document (PC Write) |
| 59. | .pcx | Bitmap graphics (ZSoft IBM PC Paintbrush file graphics format) |
| 60. | .pda | Bitmap graphics |
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