diff --git a/FileExtMismatch/src/org/sleuthkit/autopsy/fileextmismatch/extensions_text-plain.txt b/FileExtMismatch/src/org/sleuthkit/autopsy/fileextmismatch/extensions_text-plain.txt
new file mode 100644
index 0000000000..53a4123e77
--- /dev/null
+++ b/FileExtMismatch/src/org/sleuthkit/autopsy/fileextmismatch/extensions_text-plain.txt
@@ -0,0 +1,56 @@
+txt
+ini
+inf
+url
+reg
+cfg
+log
+dat
+lst
+xml
+dtd
+xsd
+xsl
+xsml
+kml
+wsdl
+manifest
+htm
+html
+shtml
+shtm
+xhtml
+hta
+css
+js
+vbs
+vb
+php
+php3
+phtml
+h
+hpp
+hxx
+cpp
+cxx
+cc
+c
+java
+cs
+asp
+properties
+mak
+cmake
+pl
+pm
+plx
+py
+pyw
+bat
+lua
+tex
+lsp
+lisp
+rb
+rbw
+ps