diff --git a/app/services/export_shixun_report_service.rb b/app/services/export_shixun_report_service.rb
index 4c8dab6aa..f9da3d6f2 100644
--- a/app/services/export_shixun_report_service.rb
+++ b/app/services/export_shixun_report_service.rb
@@ -10,7 +10,7 @@ class ExportShixunReportService
   end
 
   def filename
-    @_filename ||= "#{homework.name}-#{work.user.user_extension&.student_id}-#{work.user.real_name}.pdf".gsub(' ', '-').gsub('/', '_')
+    @_filename ||= "#{homework.name}-#{work.user&.student_id}-#{work.user.real_name}.pdf".gsub(' ', '-').gsub('/', '_')
   end
 
   def prepare_binding
diff --git a/app/views/graduation_topics/export.xlsx.axlsx b/app/views/graduation_topics/export.xlsx.axlsx
index f1d7e8e74..2da608f6a 100644
--- a/app/views/graduation_topics/export.xlsx.axlsx
+++ b/app/views/graduation_topics/export.xlsx.axlsx
@@ -1,5 +1,5 @@
 wb = xlsx_package.workbook
-wb.use_autowidth = false
+# wb.use_autowidth = false
 wb.use_shared_strings = true
 
 wb.styles do |s|
@@ -9,13 +9,13 @@ wb.styles do |s|
   bg_cc = s.add_style :bg_color=> "CCC1DA",:border => { :style => :thick, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center }
   bg_ff = s.add_style :bg_color=> "FFC000",:border => { :style => :thick, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center }
   bg_bb = s.add_style :bg_color=> "9BBB59",:border => { :style => :thick, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center }
-  bg_cell = s.add_style :bg_color => "FAEBDC", :sz => 10,:height => 20,:b => true, :border => { :style => :thin, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center }
+  bg_cell = s.add_style :bg_color => "FAEBDC", :sz => 10,:b => true, :border => { :style => :thin, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center }
 
   wb.add_worksheet(:name => "毕设选题情况汇总") do |sheet|
     sheet.sheet_view.show_grid_lines = false
     sheet_title = table_columns
     sheet_title_c = sheet_title.count
-    sheet.add_row sheet_title, :style => bg_cell
+    sheet.add_row sheet_title,:height => 32, :style => bg_cell
     sheet["J1:L1"].each { |c| c.style = bg_db }
     sheet["M1:O1"].each { |c| c.style = bg_cc }
     sheet["P1:Q1"].each { |c| c.style = bg_d2 }
@@ -23,10 +23,10 @@ wb.styles do |s|
     sheet["U1:W1"].each { |c| c.style = bg_bb }
     if topic_users.count > 0
       topic_users.each do |user|
-        sheet.add_row user, :style => sz_all
+        sheet.add_row user,:height => 18, :style => sz_all
       end  #each_widh_index
     else
-      sheet.add_row ["--"]*sheet_title_c
+      sheet.add_row ["--"]*sheet_title_c,:height => 18
     end
 
     sheet.column_widths *([15]*sheet.column_info.count)