Index: app/helpers/application_helper.rb
===================================================================
--- app/helpers/application_helper.rb	(revision 21789)
+++ app/helpers/application_helper.rb	(working copy)
@@ -1803,6 +1803,23 @@
     end
   end
 
+  def export_csv_separator_select_tag
+    options = [%w(, ,), %w(; ;), %w(: :), %w({tab} {tab}), %w({space} {space})]
+    # Add the separator from translations if it is missing
+    general_csv_separator = l(:general_csv_separator)
+    unless options.index { |option| option.first == general_csv_separator }
+      options << Array.new(2, general_csv_separator)
+    end
+    content_tag(:p) do
+      concat(
+        content_tag(:label) do
+          concat l(:label_fields_separator) + ' '
+          concat select_tag('field_separator', options_for_select(options, general_csv_separator))
+        end
+      )
+    end
+  end
+
   # Returns an array of error messages for bulk edited items (issues, time entries)
   def bulk_edit_error_messages(items)
     messages = {}
Index: app/helpers/queries_helper.rb
===================================================================
--- app/helpers/queries_helper.rb	(revision 21789)
+++ app/helpers/queries_helper.rb	(working copy)
@@ -319,7 +319,7 @@
   def query_to_csv(items, query, options={})
     columns = query.columns
 
-    Redmine::Export::CSV.generate(:encoding => params[:encoding]) do |csv|
+    Redmine::Export::CSV.generate(encoding: params[:encoding], field_separator: params[:field_separator]) do |csv|
       # csv header fields
       csv << columns.map {|c| c.caption.to_s}
       # csv lines
Index: app/views/issues/index.html.erb
===================================================================
--- app/views/issues/index.html.erb	(revision 21789)
+++ app/views/issues/index.html.erb	(working copy)
@@ -59,6 +59,7 @@
     </fieldset>
   <% end %>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <% if @issue_count > Setting.issues_export_limit.to_i %>
   <p class="icon icon-warning">
     <%= l(:setting_issues_export_limit) %>: <%= Setting.issues_export_limit.to_i %>
Index: app/views/projects/_list.html.erb
===================================================================
--- app/views/projects/_list.html.erb	(revision 21789)
+++ app/views/projects/_list.html.erb	(working copy)
@@ -66,6 +66,7 @@
     <label><%= radio_button_tag 'c[]', 'all_inline' %> <%= l(:description_all_columns) %></label>
   </p>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <p class="buttons">
     <%= submit_tag l(:button_export), :name => nil, :onclick => "hideModal(this);", :data => { :disable_with => false } %>
     <%= link_to_function l(:button_cancel), "hideModal(this);" %>
Index: app/views/reports/_details.html.erb
===================================================================
--- app/views/reports/_details.html.erb	(revision 21789)
+++ app/views/reports/_details.html.erb	(working copy)
@@ -32,6 +32,7 @@
   <h3 class="title"><%= l(:label_export_options, :export_format => 'CSV') %></h3>
   <%= form_tag(project_issues_report_details_path(@project, :detail => params[:detail], :format => 'csv'), :method => :get, :id => 'csv-export-form') do %>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <p class="buttons">
     <%= submit_tag l(:button_export), :name => nil, :onclick => 'hideModal(this);', :data => {:disable_with => false} %>
     <%= link_to_function l(:button_cancel), 'hideModal(this);' %>
Index: app/views/roles/permissions.html.erb
===================================================================
--- app/views/roles/permissions.html.erb	(revision 21789)
+++ app/views/roles/permissions.html.erb	(working copy)
@@ -92,6 +92,7 @@
   <h3 class="title"><%= l(:label_export_options, :export_format => 'CSV') %></h3>
   <%= form_tag(permissions_roles_path(:format => 'csv'), :method => :get, :id => 'csv-export-form') do %>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <p class="buttons">
     <%= submit_tag l(:button_export), :name => nil, :onclick => 'hideModal(this);', :data => {:disable_with => false} %>
     <%= link_to_function l(:button_cancel), 'hideModal(this);' %>
Index: app/views/timelog/index.html.erb
===================================================================
--- app/views/timelog/index.html.erb	(revision 21789)
+++ app/views/timelog/index.html.erb	(working copy)
@@ -52,6 +52,7 @@
     </fieldset>
   <% end %>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <p class="buttons">
     <%= submit_tag l(:button_export), :name => nil, :onclick => "hideModal(this);", :data => { :disable_with => false } %>
     <%= link_to_function l(:button_cancel), "hideModal(this);" %>
Index: app/views/timelog/report.html.erb
===================================================================
--- app/views/timelog/report.html.erb	(revision 21789)
+++ app/views/timelog/report.html.erb	(working copy)
@@ -72,6 +72,7 @@
 <div id="csv-export-options" style="display: none;">
   <h3 class="title"><%= l(:label_export_options, :export_format => 'CSV') %></h3>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <p class="buttons">
     <%= submit_tag l(:button_export), :name => nil, :id => 'csv-export-button' %>
     <%= submit_tag l(:button_cancel), :name => nil, :onclick => 'hideModal(this);', :type => 'button' %>
Index: app/views/users/index.html.erb
===================================================================
--- app/views/users/index.html.erb	(revision 21789)
+++ app/views/users/index.html.erb	(working copy)
@@ -78,6 +78,7 @@
 <div id="csv-export-options" style="display: none;">
   <h3 class="title"><%= l(:label_export_options, :export_format => 'CSV') %></h3>
   <%= export_csv_encoding_select_tag %>
+  <%= export_csv_separator_select_tag %>
   <p class="buttons">
     <%= submit_tag l(:button_export), :name => nil, :id => 'csv-export-button' %>
     <%= submit_tag l(:button_cancel), :name => nil, :onclick => 'hideModal(this);', :type => 'button' %>
Index: lib/redmine/export/csv.rb
===================================================================
--- lib/redmine/export/csv.rb	(revision 21789)
+++ lib/redmine/export/csv.rb	(working copy)
@@ -31,7 +31,15 @@
 
         class << self
           def generate(options = {}, &block)
-            col_sep = l(:general_csv_separator)
+            col_sep = options[:field_separator].present? ? options[:field_separator] : l(:general_csv_separator)
+            col_sep = case col_sep
+                      when '{tab}'
+                        "\t"
+                      when '{space}'
+                        ' '
+                      else
+                        col_sep
+            end
             encoding = Encoding.find(options[:encoding]) rescue Encoding.find(l(:general_csv_encoding))
 
             str =
Index: test/helpers/application_helper_test.rb
===================================================================
--- test/helpers/application_helper_test.rb	(revision 21789)
+++ test/helpers/application_helper_test.rb	(working copy)
@@ -2201,6 +2201,15 @@
     end
   end
 
+  def test_export_csv_separator_select_tag
+    with_locale 'en' do
+      result = export_csv_separator_select_tag
+      assert_select_in result,
+                       "option[selected='selected'][value='#{l(:general_csv_separator)}']",
+                       text: l(:general_csv_separator)
+    end
+  end
+
   private
 
   def wiki_links_with_special_characters