kind of filetype

* Adobe Flash (.swf)
* Adobe Portable Document Format (.pdf)
* Adobe PostScript (.ps)
* Autodesk Design Web Format (.dwf)
* Basic source code (.bas)
* C/C++ source code (.c, .cc, .cpp, .cxx, .h, .hpp)
* Google Earth (.kml, .kmz)
* GPS eXchange Format (.gpx)
* Hancom Hanword (.hwp)
* HTML (.htm, .html)
* Java source code (.java)
* Microsoft Excel (.xls, .xlsx)
* Microsoft PowerPoint (.ppt, .pptx)
* Microsoft Word (.doc, .docx)
* OpenOffice presentations (.odp)
* OpenOffice spreadsheet (.ods)
* OpenOffice text (.odt)
* Perl source code (.pl)
* Python source code (.py)
* Rich Text Format (.rtf, .wri)
* Scalable Vector Graphics (.svg)
* Text (.ans, .asc, .cas, .txt, .text)
* Wireless Markup Language (.wml, .wap)
* XML (.xml)