diff --git a/app/tasks/maintenance/fix_decimal_number_with_spaces_task.rb b/app/tasks/maintenance/fix_decimal_number_with_spaces_task.rb
new file mode 100644
index 000000000..7e6fe41b8
--- /dev/null
+++ b/app/tasks/maintenance/fix_decimal_number_with_spaces_task.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class FixDecimalNumberWithSpacesTask < MaintenanceTasks::Task
+    ANY_SPACES = /[[:space:]]/
+    def collection
+      Champs::DecimalNumberChamp.where.not(value: nil)
+    end
+
+    def process(element)
+      if element.value.present? && ANY_SPACES.match?(element.value)
+        element.update_column(:value, element.value.gsub(ANY_SPACES, ''))
+      end
+    end
+
+    def count
+      # not really interested in counting because it raises PG Statement timeout
+    end
+  end
+end
diff --git a/spec/models/champs/decimal_number_champ_spec.rb b/spec/models/champs/decimal_number_champ_spec.rb
index 39ead6506..3a5674f73 100644
--- a/spec/models/champs/decimal_number_champ_spec.rb
+++ b/spec/models/champs/decimal_number_champ_spec.rb
@@ -51,4 +51,21 @@ describe Champs::DecimalNumberChamp do
       it { is_expected.to be_truthy }
     end
   end
+
+  describe 'for_export' do
+    let(:champ) { create(:champ_decimal_number, value:) }
+    subject { champ.for_export }
+    context 'with nil' do
+      let(:value) { 0 }
+      it { is_expected.to eq(0.0) }
+    end
+    context 'with simple number' do
+      let(:value) { "120" }
+      it { is_expected.to eq(120) }
+    end
+    context 'with number having spaces' do
+      let(:value) { " 120 " }
+      it { is_expected.to be_nil }
+    end
+  end
 end
diff --git a/spec/tasks/maintenance/fix_decimal_number_with_spaces_task_spec.rb b/spec/tasks/maintenance/fix_decimal_number_with_spaces_task_spec.rb
new file mode 100644
index 000000000..1e257144f
--- /dev/null
+++ b/spec/tasks/maintenance/fix_decimal_number_with_spaces_task_spec.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+module Maintenance
+  RSpec.describe FixDecimalNumberWithSpacesTask do
+    describe "#process" do
+      subject(:process) { described_class.process(element) }
+      let(:champ) { create(:champ_decimal_number, value:) }
+      let(:element) { champ }
+
+      context 'with nil' do
+        let(:value) { 0 }
+        it { expect { process }.not_to change { champ.reload.valid_value } }
+      end
+      context 'with simple number' do
+        let(:value) { "120" }
+        it { expect { process }.not_to change { champ.reload.valid_value } }
+      end
+      context 'with number having leading spaces' do
+        let(:value) { " 120" }
+        it { expect { process }.to change { champ.reload.valid_value }.from(nil).to("120") }
+      end
+      context 'with number having trailing spaces' do
+        let(:value) { "120 " }
+        it { expect { process }.to change { champ.reload.valid_value }.from(nil).to("120") }
+      end
+      context 'with number having leading and trailing spaces' do
+        let(:value) { " 120 " }
+        it { expect { process }.to change { champ.reload.valid_value }.from(nil).to("120") }
+      end
+      context 'with number having in between spaces' do
+        let(:value) { "1 2 0" }
+        it { expect { process }.to change { champ.reload.valid_value }.from(nil).to("120") }
+      end
+      context 'with number having in between tab' do
+        let(:value) { "\t120\t" }
+        it { expect { process }.to change { champ.reload.valid_value }.from(nil).to("120") }
+      end
+    end
+  end
+end