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Amazon Macie
User Guide

File Extension

Once Macie begins monitoring your data, it uses several automatic content classification methods to identify and prioritize your sensitive and critical data and to accurately assign business value to your data. One of these methods is classifying by file extension.

Macie can also classify your objects by their file extensions. Macie offers a set of managed file extensions, each with a designated risk level between 1 and 10.

Macie can assign only one file extension to an object.

You cannot modify existing or add new file extensions. You can enable or disable any existing file extensions, thus enabling or disabling Macie to assign these file extensions to your objects during the classification process.

To view, enable, or disable file extensions

  1. In the Macie console, navigate to the Settings page.

  2. In the Classify data section, choose File extensions.

  3. Choose any of the listed managed file extensions to view its details.

    To enable or disable a file extension, on its details page, use the Enabled/Disabled drop-down menu, and then choose Save.

The following is the complete list of file extensions that Macie can assign to your objects during classification:

Name Description Classification Risk
7z 7-Zip compressed file Archive and compressed 3
abc SolidWorks CAD Design 5
accdb Microsoft Access database Data records 6
apk Application installable on Android Archive and compressed 1
bat Batch file Source code 5
bin Compressed archive. Readable by Java. Extractable by 7-zip Archive and compressed 3
bz2 Bzip2 compressed archive Archive and compressed 3
bzip2 Bzip2 compressed archive Archive and compressed 3
c C source code Source code 5
c# C# source code Source code 5
cab Microsoft cabinet. Extractable via ZIP Archive and compressed 3
cc C++ source code Source code 5
cer PKI certificate Keychain 6
cpp C++ source code Source code 5
csv Comma Separated Values Data records 6
cxx C++ source code Source code 5
dbf dBase database Data records 6
dbx Microsoft Outlook Express Email data 6
deb Debian Linux install package Archive and compressed 1
dmg Apple OS X Application Installer Executable 1
doc Microsoft Word Document 1
docx Microsoft Word Document 1
dot Microsoft Word Document 1
dotx Microsoft Word Document 1
dwg AutoDesk CAD Design 5
dxf AutoCAD Design 5
eml MIME email Email data 5
emlx Apple Mail email message Email data 5
exe Microsoft Windows PE Executable Executable 1
gpg PGP certificate Keychain 5
gz GNU Zip compressed archive Archive and compressed 3
gzip GNU Zip compressed archive Archive and compressed 3
html Hyper Text Markup Language Source code 3
iwa Apple iWork document archive file Archive and compressed 1
jar Java source code archive Source code 5
java Java source code Source code 5
json Java Script Object Notation Values (JSON) Data records 5
key Apple Keynote Presentation Presentation 1
keynote Apple Keynote Presentation Presentation 1
lua Lua source code Source code 3
mdb Microsoft Access database Data records 6
msg Microsoft Outlook Message Email data 5
msi Microsoft Windows Application Installer Executable 1
odp OpenOffice.org OpenDocument presentation file Presentation 1
oos OpenOffice.org spreadsheet file Spreadsheet 1
p12 PKI certificate Keychain 5
pages Apple Pages Document 1
pdf Adobe PDF Document 1
perl Perl source code Source code 5
pgp PGP certificate Keychain 5
pl Perl source code Source code 5
pot Microsoft PowerPoint Presentation 1
pps Microsoft PowerPoint Presentation 1
ppt Microsoft PowerPoint Presentation 1
pptx Microsoft PowerPoint Presentation 1
pst Microsoft Outlook Email data 8
py Python source code Source code 5
rar RAR archive. Extractable by 7-zip Archive and compressed 3
rtf Rich Text Format Document 1
sdp OpenOffice.org presentation file Presentation 1
sdw OpenOffice.org text document file Document 1
sldasm SolidWorks CAD Design 5
slddrw SolidWorks CAD Design 5
sldprt SolidWorks CAD Design 5
sql Structured Query Language Source code 5
sxi OpenOffice.org presentation file Presentation 1
sxw OpenOffice.org Writer document file Document 1
tar.gz GNU Zip compressed archive Archive and compressed 3
tsv Tab Separated Values Data records 6
txt Text Document Document 1
vdx Microsoft Visio Design 1
vsd Microsoft Visio Design 1
vss Microsoft Visio Design 1
vst Microsoft Visio Design 1
vsx Microsoft Visio Design 3
vtw Microsoft Visio Design 1
vtx Microsoft Visio Design 3
xls Microsoft Excel Spreadsheet 1
xlsx Microsoft Excel Spreadsheet 1
xlw Microsoft Excel Spreadsheet 1
xml Extensible Markup Language (XML) Data records 3
xps Open XML document specification Document 1
zip ZIP compressed archive Archive and compressed 3