diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 3338ec25..37cb52f6 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -74,6 +74,12 @@ jobs:
             python_arch: 'x64'
             tox_env: 'py311'
             os: 'macos-latest'
+          - name: 'py311 (windows)'
+            python: '3.11'
+            toxpython: 'python3.11'
+            python_arch: 'x64'
+            tox_env: 'py311'
+            os: 'windows-latest'
 
 #          - name: 'pypy38 (ubuntu)'
 #            python: 'pypy-3.8'
diff --git a/src/hip_ra/HIP_RA.py b/src/hip_ra/HIP_RA.py
index b751cadb..b835771e 100755
--- a/src/hip_ra/HIP_RA.py
+++ b/src/hip_ra/HIP_RA.py
@@ -767,7 +767,7 @@ def render_scientific(p: floatParameter | OutputParameter) -> str:
             case_data = {'SUMMARY OF RESULTS': summary_of_results}
 
             with open(outputfile, 'w', encoding='UTF-8') as f:
-                nl = os.linesep
+                nl = '\n'
 
                 f.write(f'                               *********************{nl}')
                 f.write(f'                               ***HIP CASE REPORT***{nl}')
diff --git a/tests/base_test_case.py b/tests/base_test_case.py
index 5b652259..6776466e 100644
--- a/tests/base_test_case.py
+++ b/tests/base_test_case.py
@@ -56,8 +56,8 @@ def assertListAlmostEqual(self, l1, l2, msg=None, places=7):
                 self.assertAlmostEqual(v1, v2, places=places, msg=msg)
 
     def assertFileContentsEqual(self, f1, f2):
-        with open(f1) as f1_o:
-            with open(f2) as f2_o:
+        with open(f1, newline=None) as f1_o:  # newline=None enables universal line endings which is required by Windows
+            with open(f2, newline=None) as f2_o:
                 f1_lines = f1_o.readlines()
                 f2_lines = f2_o.readlines()
                 self.assertListEqual(f1_lines, f2_lines)