The following list of file name suffixes
describe the most common file types you may work with. Most of these are
from the DOS/Windows (PC) environment, although some are common to Mac
users. Knowing what these are can be especially helpful when someone with
a PC sends you a disk, CD, or an email file attachment.
| .bin | Mac | MacBinary Encoded File (a Mac-only file transfer protocol) |
| .bmp | PC | Bitmapped Graphic File |
| .cdr | PC | CorelDraw Document |
| .com | PC | Operating System Application |
| .dbf | PC | Database File |
| .doc | PC | Microsoft Word Document |
| .dot | PC | Microsoft Word Template |
| .eps | Both | Encapsulated Postscript File |
| .exe | PC | Application Program |
| .gif | Both | GIF Format Graphic File (GIF=Graphical Interchange Format) |
| .hqx | Mac | BinHex Encoded File (preferred format for sending over internet) |
| .htm | PC | HTML Web Page File (HTML=HyperText Markup Language) |
| .html | Mac | HTML Web Page File (HTML=HyperText Markup Language) |
| .il4 | PC | Adobe Illustrator Document (number equates to program version) |
| .jpg | Both | JPEG Compressed Image File |
| .jpeg | Mac | JPEG Compressed Image File |
| .pct | Both | PICT Format Graphic File (usually a MacOS format only) |
| .pict | Mac | PICT Format Graphic File |
| .pcx | PC | PC Paintbrush Graphic File |
| Both | Adobe Acrobat File | |
| .pm3 | PC | Adobe PageMaker Document (number equates to program version) |
| .ppt | PC | Microsoft PowerPoint Document |
| .prn | PC | Adobe Postscript File |
| .ps | Both | Adobe Postscript File |
| .psd | PC | Adobe PhotoShop Document |
| .pt3 | PC | Adobe PageMaker Template (number equates to program version) |
| .pub | PC | Microsoft Publisher Document |
| .qxp | PC | Quark Express Document |
| .rtf | Both | Rich Text Format (word processing document interchange format) |
| .sam | PC | AmiPro Document |
| .sea | Mac | Self Expanding Archive File |
| .sit | Mac | Stuffit Format Compressed File |
| .tbl | PC | Adobe Table Editor Document |
| .tif | Both | TIFF (Tagged Image File Format) Graphic File |
| .tiff | Mac | TIFF (Tagged Image File Format) Graphic File |
| .txt | Both | Text Only File |
| .wk1 | PC | Lotus 1-2-3 Spreadsheet (number equates to program version) |
| .wks | PC | Microsoft Works Document |
| .wmf | PC | Metafile Format Graphics File |
| .wpd | PC | Corel WordPerfect Document |
| .wpg | PC | Corel WordPerfect Graphic |
| .wq1 | PC | Quattro Pro Spreadsheet (number equates to program version) |
| .wri | PC | Microsoft Write Document |
| .ws1 | PC | WordStar Document (number equates to program version) |
| .xls | PC | Microsoft Excel Spreadsheet |
| .zip | PC | PK-ZIP Format Compressed File |
