exports are made to be wrap_text

app/views/admin/events/_all_events.xlsx.axlsx

@@ -1,5 +1,6 @@
 wb.add_worksheet(name: 'all events') do |sheet|
   bold_style = wb.styles.add_style(b: true)
+  wrap_text = wb.styles.add_style alignment: {wrap_text: true}
   row = ['Event ID',
          'Title',
          'Abstract',
@@ -28,6 +29,7 @@ wb.add_worksheet(name: 'all events') do |sheet|
     row << (event.difficulty_level.present? ? event.difficulty_level.title : '')
     row << (event.room.present? ? event.room.name : '')
     row << event.state
-    sheet.add_row row
+    sheet.add_row row , style: wrap_text
+    sheet.column_widths 10,15,35,13,18,18,28,12,15,15,15,10
   end
 end