# ClamAV File Types
ClamAV maintains it's own file typing format and assigns these types using either:
- Evaluation of a unique sequence of bytes at the start of a file (file type magic).
- File type indicators when parsing container files.
- For example:
CL_TYPE_SCRIPT may be assigned to data contained in a PDF when the PDF indicates that a stream of bytes is "Javascript"
- File type determination based on the names or characteristics contained within the file.
- For example:
CL_TYPE_OOXML_WORD may be assigned to a Zip file containing files with specific names.
## CL_TYPE's
ClamAV Types are prefixed with `CL_TYPE_`. The following is an exhaustive list of all current CL_TYPE's.
| CL_TYPE | Description |
|------------------------|-----------------------------------------------------------------------------------|
| `CL_TYPE_7Z` | 7-Zip Archive |
| `CL_TYPE_7ZSFX` | Self-Extracting 7-Zip Archive |
| `CL_TYPE_APM` | Disk Image - Apple Partition Map |
| `CL_TYPE_ARJ` | ARJ Archive |
| `CL_TYPE_ARJSFX` | Self-Extracting ARJ Archive |
| `CL_TYPE_AUTOIT` | AutoIt Automation Executable |
| `CL_TYPE_BINARY_DATA` | binary data |
| `CL_TYPE_BINHEX` | BinHex Macintosh 7-bit ASCII email attachment encoding |
| `CL_TYPE_BZ` | BZip Compressed File |
| `CL_TYPE_CABSFX` | Self-Extracting Microsoft CAB Archive |
| `CL_TYPE_CPIO_CRC` | CPIO Archive (CRC) |
| `CL_TYPE_CPIO_NEWC` | CPIO Archive (NEWC) |
| `CL_TYPE_CPIO_ODC` | CPIO Archive (ODC) |
| `CL_TYPE_CPIO_OLD` | CPIO Archive (OLD, Little Endian or Big Endian) |
| `CL_TYPE_CRYPTFF` | Files encrypted by CryptFF malware |
| `CL_TYPE_DMG` | Apple DMG Archive |
| `CL_TYPE_ELF` | ELF Executable (Linux/Unix program or library) |
| `CL_TYPE_GPT` | Disk Image - GUID Partition Table |
| `CL_TYPE_GRAPHICS` | TIFF (Little Endian or Big Endian) |
| `CL_TYPE_GZ` | GZip Compressed File |
| `CL_TYPE_HTML_UTF16` | Wide-Character / UTF16 encoded HTML |
| `CL_TYPE_HTML` | HTML data |
| `CL_TYPE_HWP3` | Hangul Word Processor (3.X) |
| `CL_TYPE_HWPOLE2` | Hangul Word Processor embedded OLE2 |
| `CL_TYPE_INTERNAL` | Internal properties |
| `CL_TYPE_ISHIELD_MSI` | Windows Install Shield MSI installer |
| `CL_TYPE_ISO9660` | ISO 9660 file system for optical disc media |
| `CL_TYPE_JAVA` | Java Class File |
| `CL_TYPE_LNK` | Microsoft Windows Shortcut File |
| `CL_TYPE_MACHO_UNIBIN` | Universal Binary/Java Bytecode |
| `CL_TYPE_MACHO` | Apple/NeXTSTEP Mach-O Executable file format |
| `CL_TYPE_MAIL` | Email file |
| `CL_TYPE_MBR` | Disk Image - Master Boot Record |
| `CL_TYPE_MHTML` | MHTML Saved Web Page |
| `CL_TYPE_MSCAB` | Microsoft CAB Archive |
| `CL_TYPE_MSCHM` | Microsoft CHM help archive |
| `CL_TYPE_MSEXE` | Microsoft EXE / DLL Executable file |
| `CL_TYPE_MSOLE2` | Microsoft OLE2 Container file |
| `CL_TYPE_MSSZDD` | Microsoft Compressed EXE |
| `CL_TYPE_NULSFT` | NullSoft Scripted Installer program |
| `CL_TYPE_OLD_TAR` | TAR archive (old) |
| `CL_TYPE_OOXML_HWP` | Hangul Office Open Word Processor (5.X) |
| `CL_TYPE_OOXML_PPT` | Microsoft Office Open XML PowerPoint |
| `CL_TYPE_OOXML_WORD` | Microsoft Office Open Word 2007+ |
| `CL_TYPE_OOXML_XL` | Microsoft Office Open Excel 2007+ |
| `CL_TYPE_PART_HFSPLUS` | Apple HFS+ partition |
| `CL_TYPE_PDF` | Adobe PDF document |
| `CL_TYPE_POSIX_TAR` | TAR archive |
| `CL_TYPE_PS` | Postscript |
| `CL_TYPE_RAR` | RAR Archive |
| `CL_TYPE_RARSFX` | Self-Extracting RAR Archive |
| `CL_TYPE_RIFF` | Resource Interchange File Format container formatted file |
| `CL_TYPE_RTF` | Rich Text Format document |
| `CL_TYPE_SCRENC` | Files encrypted by ScrEnc malware |
| `CL_TYPE_SCRIPT` | Generic type for scripts that don't have their own type (Javascript, Python, etc) |
| `CL_TYPE_SIS` | Symbian OS Software Installation Script Archive |
| `CL_TYPE_SWF` | Adobe Flash File (LZMA, Zlib, or uncompressed) |
| `CL_TYPE_TEXT_ASCII` | ASCII text |
| `CL_TYPE_TEXT_UTF16BE` | UTF-16BE text |
| `CL_TYPE_TEXT_UTF16LE` | UTF-16LE text |
| `CL_TYPE_TEXT_UTF8` | UTF-8 text |
| `CL_TYPE_TNEF` | Microsoft Outlook & Exchange email attachment format |
| `CL_TYPE_UUENCODED` | UUEncoded (Unix-to-Unix) binary file (Unix email attachment format) |
| `CL_TYPE_XAR` | XAR Archive |
| `CL_TYPE_XDP` | Adobe XDP - Embedded PDF |
| `CL_TYPE_XML_HWP` | Hangul Word Processor XML (HWPML) Document |
| `CL_TYPE_XML_WORD` | Microsoft Word 2003 XML Document |
| `CL_TYPE_XML_XL` | Microsoft Excel 2003 XML Document |
| `CL_TYPE_XZ` | XZ Archive |
| `CL_TYPE_ZIP` | Zip Archive |
| `CL_TYPE_ZIPSFX` | Self-Extracting Zip Archive |