diff --git a/pkg/appdata.xml b/pkg/appdata.xml
index e49914d1..85d834cd 100644
--- a/pkg/appdata.xml
+++ b/pkg/appdata.xml
@@ -14,8 +14,8 @@
 		<ul>
 			<li>Opens GPX, TCX, FIT, KML, IGC, NMEA, SIGMA SLF, Suunto SML, LOC,
 				OziExplorer (PLT, WPT, RTE), GeoJSON, SeeYou CUP,
-				Garmin GPI &amp; CSV, TomTom OV2 &amp; ITN, ONmove OMD/GHP
-				and geotagged JPEG files.</li>
+				Garmin GPI &amp; CSV, TomTom OV2 &amp; ITN, ONmove OMD/GHP,
+				TwoNav (TRK, RTE, WPT) and geotagged JPEG files.</li>
 			<li>User-definable online maps (OpenStreetMap/Google tiles, WMTS,
 				WMS, TMS, QuadTiles).</li>
 			<li>Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases,
@@ -98,5 +98,8 @@
 		<mimetype>application/vnd.onmove.omd</mimetype>
 		<mimetype>application/vnd.onmove.ghp</mimetype>
 		<mimetype>application/vnd.memory-map.qct</mimetype>
+		<mimetype>application/vnd.twonav.trk</mimetype>
+		<mimetype>application/vnd.twonav.rte</mimetype>
+		<mimetype>application/vnd.twonav.wpt</mimetype>
 	</mimetypes>
 </component>
diff --git a/pkg/gpxsee.xml b/pkg/gpxsee.xml
index 87fa793b..6644e13f 100644
--- a/pkg/gpxsee.xml
+++ b/pkg/gpxsee.xml
@@ -156,6 +156,28 @@
 		<glob pattern="*.ghp"/>
 	</mime-type>
 
+	<mime-type type="application/vnd.twonav.trk">
+		<comment>TwoNav Track File</comment>
+		<sub-class-of type="text/plain"/>
+		<generic-icon name="text/plain"/>
+		<glob pattern="*.trk"/>
+	</mime-type>
+
+	<mime-type type="application/vnd.twonav.rte">
+		<comment>TwoNav Route File</comment>
+		<sub-class-of type="text/plain"/>
+		<generic-icon name="text/plain"/>
+		<glob pattern="*.rte"/>
+	</mime-type>
+
+	<mime-type type="application/vnd.twonav.wpt">
+		<comment>TwoNav Waypoint File</comment>
+		<sub-class-of type="text/plain"/>
+		<generic-icon name="text/plain"/>
+		<glob pattern="*.wpt"/>
+	</mime-type>
+
+
 	<!-- Maps -->
 
 	<mime-type type="application/vnd.garmin.img">