diff --git a/frontend/tips/1-upload-a-file/code/csharp/csharp.csproj b/frontend/tips/1-upload-a-file/code/csharp/csharp.csproj
index 8c7339e53e..421c12edf5 100644
--- a/frontend/tips/1-upload-a-file/code/csharp/csharp.csproj
+++ b/frontend/tips/1-upload-a-file/code/csharp/csharp.csproj
@@ -9,7 +9,7 @@
-
+
diff --git a/frontend/tips/2-download-a-file/code/csharp/csharp.csproj b/frontend/tips/2-download-a-file/code/csharp/csharp.csproj
index 8c7339e53e..421c12edf5 100644
--- a/frontend/tips/2-download-a-file/code/csharp/csharp.csproj
+++ b/frontend/tips/2-download-a-file/code/csharp/csharp.csproj
@@ -9,7 +9,7 @@
-
+
diff --git a/frontend/tips/3-work-with-frames/code/csharp/csharp.csproj b/frontend/tips/3-work-with-frames/code/csharp/csharp.csproj
index 8c7339e53e..421c12edf5 100644
--- a/frontend/tips/3-work-with-frames/code/csharp/csharp.csproj
+++ b/frontend/tips/3-work-with-frames/code/csharp/csharp.csproj
@@ -9,7 +9,7 @@
-
+
diff --git a/frontend/tips/4-work-with-multiple-windows/code/csharp/csharp.csproj b/frontend/tips/4-work-with-multiple-windows/code/csharp/csharp.csproj
index 8c7339e53e..421c12edf5 100644
--- a/frontend/tips/4-work-with-multiple-windows/code/csharp/csharp.csproj
+++ b/frontend/tips/4-work-with-multiple-windows/code/csharp/csharp.csproj
@@ -9,7 +9,7 @@
-
+
diff --git a/frontend/tips/5-select-from-a-dropdown/code/csharp/csharp.csproj b/frontend/tips/5-select-from-a-dropdown/code/csharp/csharp.csproj
index 8c7339e53e..421c12edf5 100644
--- a/frontend/tips/5-select-from-a-dropdown/code/csharp/csharp.csproj
+++ b/frontend/tips/5-select-from-a-dropdown/code/csharp/csharp.csproj
@@ -9,7 +9,7 @@
-
+
diff --git a/frontend/tips/6-open-new-window/code/csharp/csharp.csproj b/frontend/tips/6-open-new-window/code/csharp/csharp.csproj
index 8c7339e53e..421c12edf5 100644
--- a/frontend/tips/6-open-new-window/code/csharp/csharp.csproj
+++ b/frontend/tips/6-open-new-window/code/csharp/csharp.csproj
@@ -9,7 +9,7 @@
-
+