diff --git a/app/views/admin/seminars/export.xlsx.axlsx b/app/views/admin/seminars/export.xlsx.axlsx
index 5aff95b..340998f 100644
--- a/app/views/admin/seminars/export.xlsx.axlsx
+++ b/app/views/admin/seminars/export.xlsx.axlsx
@@ -2,7 +2,7 @@
 
 wb = xlsx_package.workbook
 
-wb.add_worksheet(name: @seminar.title) do |sheet|
+wb.add_worksheet(name: (@seminar.title.to_s[0..27]+'...')) do |sheet|
 
   row = [t('seminar_signup.signup_time')]
 
diff --git a/app/views/admin/seminars/seminar_signup.html.erb b/app/views/admin/seminars/seminar_signup.html.erb
index a0cdf31..d3bc449 100644
--- a/app/views/admin/seminars/seminar_signup.html.erb
+++ b/app/views/admin/seminars/seminar_signup.html.erb
@@ -80,7 +80,7 @@
                   </div>
                 <% elsif field_set.field_name== 'status' %>
                   <%= t("seminar.registration_status_#{seminar_signup.status}") if !seminar_signup.status.blank? %>
-                <% else %>
+                <% elsif field_set.field_name != 'recaptcha' %>
                   <%= seminar_signup.send("#{field_set.field_name}") %>
                 <% end %>
               </td>