| File Kind | Type | Extension |
| AppleWorks document | CWWP | cwk |
| C Header Source File | h | |
| C Precompiled Header Source File | pch | |
| C Source File | c | |
| C++ Header Source File | hh, hp, hpp, hxx, h++ | |
| C++ Precompiled Header Source File | pch++ | |
| C++ Source File | cc, cp, cpp, cxx, c++ | |
| emlx | emlx | |
| Fortran Source File | f, for, f77, f95 | |
| HTML document | HTML | html, htm, shtml, jhtml |
| Java Source File | java, jav | |
| JavaScript script | js | |
| Lex Source File | l, lm, lmm, lpp, lxx | |
| mbox | mbox | |
| Microsoft Word 2007 | docx | |
| Microsoft Word 6.0/95 document | W6BN | |
| Microsoft Word document | W8BN | doc |
| Objective-C Source File | m | |
| Objective-C++ Source File | mm | |
| Pascal Source file | pas | |
| Plain text document | txt, text | |
| RTF with attachments (RTFD) document | rtfd | |
| Rich Text Format (RTF) document | 'RTF ' | rtf |
| strings file | strings | |
| Text document | TEXT, sEXT, ttro | |
| Web Internet Location | ilht | webloc |
| Web archive | webarchive | |
| Web site location | LINK | url |
| XHTML document | xhtml, xhtm | |
| XML document | xml, xbl, xsl, xslt | |
| Yacc Source File | y, ym, ymm, ypp, yxx |
