Supported File Types
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Supported File Types

  • PDF

The following file types and extensions are currently supported by Glasswall Clean Room.

Learn more about Glasswall CDR.

If you don't see your desired file extension below, please let us know.

Glasswall offers two levels of CDR for our supported file types.


Glasswall extrapolates the file to its granular levels, then inspects and validates every component, their relationships, and their attributes in accordance with the file vendor specification.

File TypeExtension
Word Binary File.doc, .dot
Excel Binary File.xls, .xlt
PowerPoint Binary File.ppt, .pps
PDF Document.pdf
Office Open XML Document.docx, .docm, .dotx, .dotm
Office Open XML Workbook.xlsx, .xltx, .xltm, .xlsm
Office Open XML Presentation.pptx, .pptm, .ppsx, .ppam, .potm, .ppsm, .potx, .pot
TIFF Image.tif, .tiff, .geotiff
SVG Image.svg
Enhanced Meta File.emf
Windows Metafile Format.wmf
JPEG Image.jpeg, .jpg, .jpe, .jif, .jfif, .jfi
PNG Image.png
GIF Image.gif
BMP Image.bmp, .dib

Learn more about content management & policy definitions.


Glasswall extrapolates the file at a high level (e.g., container level), then validates these components against a subset of selected rules from the file vendor specification. For example, Glasswall may validate attributes of a container and ensure that the streams are of the correct size, running order, and encoding in relation to the container metadata. However, the contents of these streams are not further inspected, validated, or cleansed.

File TypeExtension
WebP Image.webp
Waveform Audio File.wav, .wave
Mpeg-2 Media File.mpg, .mpeg
MP3 Audio File.mp1, .mp2, .mp3
MP4 Media File.mp4, .m4a, .m4p, .m4b, .m4r, .m4v
Windows Portable Executable Format.acm, .ax, .cpl, .dll, .drv, .mui, .exe, .ocx, .scr, .sys, .efi, .tsp
Mach Object Format.o, .dylib
Common Object File Format.o, .obj
Executable & Linked Format.elf, .o, .so, .axf, .bin, .ko, .mod, .out

Note: Binary executable files should be used with caution; the use of additional security filters is highly recommended. Binary files are processed as per the standard processing level but binary files may still be risky in nature.

Zip & Archive Support

Archive formats and file types are first identified using a structural check and then decompressed. 

Depending on the format of extracted file types, the contents of the archive are processed and a brand-new archive with the secured content is created.

File TypeExtensionsComment
Zip Archive, .zip64Archive recreated
7-Zip Archive File.7zArchive recreated
BZip2 Archive File.bz2Archive recreated
GZip Archive File.gzArchive recreated
Rar Archive File.rarArchive decompression only
Tar Archive File.tarArchive recreated
XZ Compression based on LZMA.xzArchive recreated

Learn more about how Glasswall processes archive file types.

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