diff --git a/app/assets/javascripts/controllers/admin/statistics.coffee.erb b/app/assets/javascripts/controllers/admin/statistics.coffee.erb
index 93057dbb0..046d0ee62 100644
--- a/app/assets/javascripts/controllers/admin/statistics.coffee.erb
+++ b/app/assets/javascripts/controllers/admin/statistics.coffee.erb
@@ -604,9 +604,6 @@ Application.Controllers.controller 'ExportStatisticsController', [ '$scope', '$u
   $scope.setRequest = ->
     if $scope.export.type == 'global'
       $scope.actionUrl = '/stats/global/export'
-      $scope.query = JSON.stringify(query)
-    else
-      $scope.actionUrl = '/stats/'+index.key+'/export'
       $scope.query = JSON.stringify(
         "query":
           "bool":
@@ -614,11 +611,16 @@ Application.Controllers.controller 'ExportStatisticsController', [ '$scope', '$u
               {
                 "range":
                   "date":
-                    "gte": moment(info.dates.start).format()
-                    "lte": moment(info.dates.end).format()
+                    "gte": moment($scope.dates.start).format()
+                    "lte": moment($scope.dates.end).format()
               }
             ]
       )
+    else
+      $scope.actionUrl = '/stats/'+index.key+'/export'
+      $scope.query = JSON.stringify(query)
+
+
 
   ##
   # Callback to close the modal, telling the caller what is exported
diff --git a/app/assets/templates/admin/statistics/export.html.erb b/app/assets/templates/admin/statistics/export.html.erb
index a028612f7..fb577b2a0 100644
--- a/app/assets/templates/admin/statistics/export.html.erb
+++ b/app/assets/templates/admin/statistics/export.html.erb
@@ -24,6 +24,7 @@
                    show-button-bar="false"
                    placeholder="{{ 'start' | translate }}"
                    ng-click="toggleStartDatePicker($event)"
+                   ng-change="setRequest()"
                    required="required"/>
                           <span class="input-group-btn">
                             <button type="button" class="btn btn-default btn-search-datepicker" ng-click="toggleStartDatePicker($event)">
@@ -47,6 +48,7 @@
                    show-button-bar="false"
                    placeholder="{{ 'end' | translate }}"
                    ng-click="toggleEndDatePicker($event)"
+                   ng-change="setRequest()"
                    required="required"/>
                           <span class="input-group-btn">
                             <button type="button" class="btn btn-default btn-search-datepicker" ng-click="toggleEndDatePicker($event)">
diff --git a/app/controllers/api/statistics_controller.rb b/app/controllers/api/statistics_controller.rb
index 0aade905d..bb9f01a9e 100644
--- a/app/controllers/api/statistics_controller.rb
+++ b/app/controllers/api/statistics_controller.rb
@@ -16,7 +16,7 @@ class API::StatisticsController < API::ApiController
       end
 
       def export_#{path}
-        authorize :statistic, :#{path}?
+        authorize :statistic, :export_#{path}?
 
         query = MultiJson.load(params[:body])
         type_key = params[:type_key]
@@ -43,9 +43,25 @@ class API::StatisticsController < API::ApiController
   end
 
   def export_global
+    authorize :statistic, :export_global?
+
     # query all stats with range arguments
-    Elasticsearch::Model.client.search
-    render xls: []
+    query = MultiJson.load(params[:body])
+
+    @results = Elasticsearch::Model.client.search({index: 'stats', scroll: '30s', body: query})
+    scroll_id = @results['_scroll_id']
+    while @results['hits']['hits'].size != @results['hits']['total']
+      scroll_res = Elasticsearch::Model.client.scroll(scroll: '30s', scroll_id: scroll_id)
+      @results['hits']['hits'].concat(scroll_res['hits']['hits'])
+      scroll_id = scroll_res['_scroll_id']
+    end
+
+    ids = @results['hits']['hits'].map { |u| u['_source']['userId'] }
+    @users = User.includes(:profile).where(:id => ids)
+
+    @indices = StatisticIndex.all.includes(:statistic_fields, :statistic_types => [:statistic_sub_types])
+
+    render xlsx: 'export_global.xlsx', filename: "statistics.xlsx"
   end
 
   def scroll
diff --git a/app/policies/statistic_policy.rb b/app/policies/statistic_policy.rb
index faec07341..617e6f931 100644
--- a/app/policies/statistic_policy.rb
+++ b/app/policies/statistic_policy.rb
@@ -1,5 +1,6 @@
 class StatisticPolicy < ApplicationPolicy
-  %w(index account event machine project subscription training user scroll).each do |action|
+  %w(index account event machine project subscription training user scroll export_subscription export_machine
+     export_training export_event export_account export_project export_global).each do |action|
     define_method "#{action}?" do
       user.is_admin?
     end
diff --git a/app/views/api/statistics/export_global.xlsx.axlsx b/app/views/api/statistics/export_global.xlsx.axlsx
new file mode 100644
index 000000000..572acb8b7
--- /dev/null
+++ b/app/views/api/statistics/export_global.xlsx.axlsx
@@ -0,0 +1,84 @@
+wb = xlsx_package.workbook
+
+header = wb.styles.add_style :b => true, :bg_color => Stylesheet.primary.upcase.gsub('#', 'FF'), :fg_color => 'FFFFFFFF'
+date = wb.styles.add_style :format_code => Rails.application.secrets.excel_date_format
+
+@indices.each do |index|
+  if index.table
+    index.statistic_types.each do |type|
+      # see https://msdn.microsoft.com/fr-fr/library/c6bdca6y(v=vs.90).aspx for unauthorized character list
+      sheet_name = "#{index.label} - #{type.label}".gsub(/[*|\\:"<>?\/]/,'').truncate(31)
+      wb.add_worksheet(name: sheet_name) do |sheet|
+
+        ## data table
+        # heading labels
+        columns = [t('export.date'), t('export.user'), t('export.email'), t('export.phone'), t('export.gender'), t('export.age'), t('export.type')]
+        columns.push type.label unless type.simple
+        index.statistic_fields.each do |f|
+          columns.push f.label
+        end
+        columns.push t('export.revenue') if index.ca
+        sheet.add_row columns, :style => header
+
+        # data rows
+        @results['hits']['hits'].each do |hit|
+          # check that the current result is for the given index and type
+          if hit['_type'] == index.es_type_key and hit['_source']['type'] == type.key
+            # get matching objects
+            user = get_item(@users, hit['_source']['userId'])
+            subtype = get_item(type.statistic_sub_types, hit['_source']['subType'], 'key')
+            # start to fill data and associated styles and data-types
+            data = [
+                Date::strptime(hit['_source']['date'],'%Y-%m-%d'),
+                user.profile.full_name,
+                user.email,
+                user.profile.phone,
+                t("export.#{hit['_source']['gender']}"),
+                hit['_source']['age'],
+                subtype.nil? ? "" : subtype.label
+            ]
+            styles = [date, nil, nil, nil, nil, nil, nil]
+            types = [:date, :string, :string, :string, :string, :integer, :string]
+            # do not proceed with the 'stat' field if the type is declared as 'simple'
+            unless type.simple
+              data.push hit['_source']['stat']
+              styles.push nil
+              types.push :string
+            end
+            # proceed additional fields
+            index.statistic_fields.each do |f|
+              field_data = hit['_source'][f.key]
+              case f.data_type
+                when 'date'
+                  data.push Date::strptime(field_data, '%Y-%m-%d')
+                  styles.push date
+                  types.push :date
+                when 'list'
+                  data.push field_data.map{|e| e['name'] }.join(', ')
+                  styles.push nil
+                  types.push :string
+                when 'number'
+                  data.push field_data
+                  styles.push nil
+                  types.push :float
+                else
+                  data.push field_data
+                  styles.push nil
+                  types.push :string
+              end
+
+            end
+            # proceed teh 'ca' field if requested
+            if index.ca
+              data.push hit['_source']['ca']
+              styles.push nil
+              types.push :float
+            end
+            # finally, add the data row to the workbook's sheet
+            sheet.add_row data, :style =>  styles, :types => types
+          end
+        end
+      end
+    end
+  end
+end
\ No newline at end of file