diff --git a/filetypes.xml b/filetypes.xml
index 0b221c9..e5df769 100644
--- a/filetypes.xml
+++ b/filetypes.xml
@@ -13,6 +13,7 @@
       <mapping ext="inf" type="PLAIN_TEXT" />
       <mapping ext="fixed" type="PLAIN_TEXT" />
       <mapping ext="sqlite3" type="PLAIN_TEXT" />
+      <mapping ext="dat" type="PLAIN_TEXT" />
       <mapping ext="info" type="PLAIN_TEXT" />
       <removed_mapping ext="bat" approved="true" type="PLAIN_TEXT" />
       <removed_mapping ext="cmd" approved="true" type="PLAIN_TEXT" />