diff --git a/src/CodingWithCalvin.OpenInNotepadPlusPlus.sln b/src/CodingWithCalvin.OpenInNotepadPlusPlus.sln
deleted file mode 100644
index 65e9a4a..0000000
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+++ /dev/null
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diff --git a/src/CodingWithCalvin.OpenInNotepadPlusPlus.slnx b/src/CodingWithCalvin.OpenInNotepadPlusPlus.slnx
new file mode 100644
index 0000000..0176010
--- /dev/null
+++ b/src/CodingWithCalvin.OpenInNotepadPlusPlus.slnx
@@ -0,0 +1,9 @@
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