diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index afaf02881..698344063 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -371,7 +371,7 @@ class CoursesController < ApplicationController
     respond_to do |format|
       format.xls {
         send_data(member_to_xls(@all_members,@course.course_groups), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname.to_s + @course.name + @course.time.to_s + @course.term}#{l(:excel_member_list)}.xls")
+                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname.to_s }_#{@course.name}_#{@course.time.to_s + @course.term}#{l(:excel_member_list)}.xls")
       }
     end
   end
@@ -996,7 +996,7 @@ GROUP BY members.user_id ORDER BY score #{score_sort_by}"
           sheet1[count_row,2] = member.user.login
           sheet1[count_row,3] = member.user.user_extensions.student_id
           sheet1[count_row,4] = member.user.mail
-          sheet1[count_row,5] = format("%0.2f",member.score.to_s)
+          sheet1[count_row,5] = format("%0.2f",member.score.nil? ? 0:member.score.to_s)
           count_row += 1
         end
       end
diff --git a/app/controllers/homework_attach_controller.rb b/app/controllers/homework_attach_controller.rb
index 83c26b713..d20e9ee86 100644
--- a/app/controllers/homework_attach_controller.rb
+++ b/app/controllers/homework_attach_controller.rb
@@ -31,7 +31,7 @@ class HomeworkAttachController < ApplicationController
       format.js
       format.xls {
         send_data(homework_to_xls(@all_homework_list), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "not_rated_homework_#{Time.now.strftime("%Y%m%d")}.xls")
+                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}(#{l(:excel_not_rated)}).xls")
       }
     end
   end
@@ -61,7 +61,7 @@ class HomeworkAttachController < ApplicationController
       format.js
       format.xls {
         send_data(homework_to_xls(all_homework_list), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "been_rated_homework_#{Time.now.strftime("%Y%m%d")}.xls")
+                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}(#{l(:excel_been_rated)}).xls")
       }
     end
   end
@@ -92,7 +92,7 @@ class HomeworkAttachController < ApplicationController
       format.js
       format.xls {
         send_data(homework_to_xls(all_homework_list), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "all_homework_#{Time.now.strftime("%Y%m%d")}.xls")
+                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}.xls")
       }
     end
   end
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index dee8246f2..62f0e0bc4 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -2103,6 +2103,9 @@ zh:
   excel_class: "班级:"
   excel_member_with_out_class: "未加入班级的学生"
   excel_member_list: 成员列表
+  excel_homework_list: 作品列表
+  excel_been_rated: 已评
+  excel_not_rated: 未评
   label_export_excel: 导出Excel
 
   label_softapplication: 应用软件