diff --git a/reporter/__init__.py b/reporter/__init__.py
index 88faa7e..7c3da8d 100644
--- a/reporter/__init__.py
+++ b/reporter/__init__.py
@@ -46,7 +46,7 @@ class TestViewer(Gtk.Box):
     def set_test_result(self, file):
         current = self.stack.clear()
         self.viewer.clear()
-        if file and file.get_is_test_result():
+        if file and file.is_file():
             results = testresults.TestResults(file.path)
             self.stack.show_properties(results, current)
             self.viewer.show_results(results)
diff --git a/reporter/testchooser.py b/reporter/testchooser.py
index 678f147..e53fd9f 100644
--- a/reporter/testchooser.py
+++ b/reporter/testchooser.py
@@ -10,13 +10,14 @@ class Path(GObject.GObject):
     def __init__(self, path):
         GObject.GObject.__init__(self)
         self.path = path
+        self.is_file = self.path.is_file
 
     def __lt__(self, rhs): return self.path < rhs.path
-    def get_is_test_result(self):
-        return False not in [ f.is_file() for f in self.path.iterdir() ]
-    def get_name(self): return self.path.name
+    def get_name(self):
+        name = self.path.name
+        return name.split(".")[0] if self.is_file() else name
     def get_model(self):
-        if not self.get_is_test_result():
+        if self.path.is_dir():
             return DirectoryModel(self.path)
 
 
@@ -73,7 +74,7 @@ class DirectoryWindow(Gtk.ScrolledWindow):
         expander = listitem.get_child()
         expander.set_list_row(treerow)
         expander.get_child().set_text(filepath.get_name())
-        listitem.set_selectable(filepath.get_is_test_result())
+        listitem.set_selectable(filepath.is_file())
 
     def on_unbind(self, factory, listitem):
         expander = listitem.get_child()
diff --git a/reporter/testresults.py b/reporter/testresults.py
index 8460615..c45b6cc 100644
--- a/reporter/testresults.py
+++ b/reporter/testresults.py
@@ -2,6 +2,8 @@
 from gi.repository import GObject
 from gi.repository import Gtk
 import html
+import pathlib
+import tarfile
 import xml.etree.ElementTree
 
 class PassingTest:
@@ -44,39 +46,43 @@ class TestCase(GObject.GObject):
 
 
 class TestResults:
-    def __init__(self, testdir):
+    def __init__(self, testtar):
         self.versions = [ ]
         self.tests = dict()
         self.properties = dict()
         self.skipped = set()
 
-        for file in sorted(testdir.iterdir()):
-            self.versions.append(file.stem)
-            passed = 0
+        with tarfile.open(testtar, "r:*") as tf:
+            for member in [ m for m in tf.getmembers() if m.isfile() ]:
+                self.read_file(member.name, tf.extractfile(member))
+        self.versions.sort()
 
-            root = xml.etree.ElementTree.parse(file).getroot()
-            for prop in root.attrib.keys():
-                self.set_property(prop, file.stem, root.attrib[prop])
+    def read_file(self, name, file):
+        root = xml.etree.ElementTree.parse(file).getroot()
+        self.versions.append(pathlib.Path(name).stem)
+        passed = 0
 
-            for elm in root:
-                if elm.tag == "properties":
-                    for prop in elm:
-                        self.set_property(prop.attrib["name"], file.stem,
-                                          prop.attrib["value"])
-                elif elm.tag == "testcase":
-                    if len(elm) == 0:
-                        result = PassingTest(elm)
-                        passed += 1
-                    elif elm[0].tag == "skipped":
-                        result = SkippedTest(elm)
-                        self.skipped.add(result.message)
-                    elif elm[0].tag == "failure":
-                        result = FailedTest(elm)
-                    self.add_testcase(elm.attrib["name"], file.stem, result)
-            self.set_property("passed", file.stem, str(passed))
+        for prop in root.attrib.keys():
+            self.set_property(prop, root.attrib[prop])
 
-    def set_property(self, name, vers, value):
-        self.properties.setdefault(vers, dict())[name.upper()] = value
+        for elm in root:
+            if elm.tag == "properties":
+                for prop in elm:
+                    self.set_property(prop.attrib["name"], prop.attrib["value"])
+            elif elm.tag == "testcase":
+                if len(elm) == 0:
+                    result = PassingTest(elm)
+                    passed += 1
+                elif elm[0].tag == "skipped":
+                    result = SkippedTest(elm)
+                    self.skipped.add(result.message)
+                elif elm[0].tag == "failure":
+                    result = FailedTest(elm)
+                self.add_testcase(elm.attrib["name"], result)
+        self.set_property("passed", str(passed))
 
-    def add_testcase(self, name, vers, result):
-        self.tests.setdefault(name, TestCase(name))[vers] = result
+    def set_property(self, name, value):
+        self.properties.setdefault(self.versions[-1], dict())[name.upper()] = value
+
+    def add_testcase(self, name, result):
+        self.tests.setdefault(name, TestCase(name))[self.versions[-1]] = result