diff --git a/src/Task.cpp b/src/Task.cpp
index 9fe3473c5..56814941c 100644
--- a/src/Task.cpp
+++ b/src/Task.cpp
@@ -537,97 +537,6 @@ std::string Task::composeF4 () const
   return ff4;
 }
 
-////////////////////////////////////////////////////////////////////////////////
-std::string Task::composeCSV () const
-{
-  std::stringstream out;
-
-  // Deliberately no 'id'.
-  out << "'" << get ("uuid")   << "',";
-  out << "'" << get ("status") << "',";
-
-  // Tags
-  std::vector <std::string> tags;
-  getTags (tags);
-  std::string allTags;
-  join (allTags, " ", tags);
-  out << "'" << allTags          << "',";
-
-  out <<        get ("entry")    <<  ",";
-  out <<        get ("start")    <<  ",";
-
-  if (has ("due"))
-    out <<      get ("due")      <<  ",";
-  else
-    out << ",";
-
-  if (has ("recur"))
-    out <<      get ("recur")    <<  ",";
-  else
-    out << ",";
-
-  out <<        get ("end")      <<  ",";
-
-  if (has ("project"))
-    out << "'" << get ("project")  << "',";
-  else
-    out << ",";
-
-  if (has ("priority"))
-    out << "'" << get ("priority") << "',";
-  else
-    out << ",";
-
-  if (has ("fg"))
-    out << "'" << get ("fg")     << "',";
-  else
-    out << ",";
-
-  if (has ("bg"))
-    out << "'" << get ("bg")     << "',";
-  else
-    out << ",";
-
-  // Convert single quotes to double quotes, because single quotes are used to
-  // delimit the values that need it.
-  std::string clean = get ("description");
-  std::replace (clean.begin (), clean.end (), '\'', '"');
-  out << "'" << clean            << "'\n";
-
-  return out.str ();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-std::string Task::composeYAML () const
-{
-  std::stringstream out;
-
-  // Task header.
-  out << "  task:\n";
-
-  // Get all the supported attribute names.
-  std::vector <std::string> names = context.getColumns ();
-  std::sort (names.begin (), names.end ());
-
-  // Only include non-trivial attributes.
-  std::string value;
-  std::vector <std::string>::iterator name;
-  for (name = names.begin (); name != names.end (); ++name)
-    if ((value = get (*name)) != "")
-      out << "    " << *name << ": " << value << "\n";
-
-  // Now the annotations, which are not listed in names.
-  std::map <std::string, std::string> annotations;
-  getAnnotations (annotations);
-  std::map <std::string, std::string>::iterator a;
-  for (a = annotations.begin (); a != annotations.end (); ++a)
-    out << "    annotation:\n"
-        << "      entry: "       << a->first.substr (11) << "\n"
-        << "      description: " << a->second            << "\n";
-
-  return out.str ();
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 std::string Task::composeJSON (bool include_id /*= false*/) const
 {
diff --git a/src/Task.h b/src/Task.h
index 8a5a56352..1029fbe03 100644
--- a/src/Task.h
+++ b/src/Task.h
@@ -45,8 +45,6 @@ public:
 
   void parse (const std::string&);
   std::string composeF4 () const;
-  std::string composeCSV () const;
-  std::string composeYAML () const;
   std::string composeJSON (bool include_id = false) const;
 
   // Status values.