diff --git a/abc_output.txt b/abc_output.txt
new file mode 100644
index 00000000..48b83b86
--- /dev/null
+++ b/abc_output.txt
@@ -0,0 +1 @@
+ABC
\ No newline at end of file
diff --git a/write_abc.py b/write_abc.py
new file mode 100644
index 00000000..0504a705
--- /dev/null
+++ b/write_abc.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""Write 'ABC' to a file."""
+
+def write_abc(filename: str = "abc_output.txt") -> None:
+    """Write the string 'ABC' to the specified file."""
+    with open(filename, "w", encoding="utf-8") as f:
+        f.write("ABC")
+    print(f"Successfully wrote 'ABC' to {filename}")
+
+
+if __name__ == "__main__":
+    write_abc()