diff --git a/otp.c b/otp.c
index 4261e20..e42332a 100644
--- a/otp.c
+++ b/otp.c
@@ -271,7 +271,7 @@ int command_line_mode(int argc, char* argv[]) {
 }
 
 void show_main_menu(void) {
-    printf("=== Main Menu ===\n\n");
+    printf("======================== Main Menu ========================\n");
     printf("\033[4mT\033[0mext encrypt\n");
     printf("\033[4mF\033[0mile encrypt\n");
     printf("\033[4mD\033[0mecrypt\n");
diff --git a/test_decrypt.txt b/test_decrypt.txt
new file mode 100644
index 0000000..a475e97
--- /dev/null
+++ b/test_decrypt.txt
@@ -0,0 +1 @@
+Test file content for decryption
diff --git a/test_decrypt.txt.otp b/test_decrypt.txt.otp
new file mode 100644
index 0000000..020bc5e
Binary files /dev/null and b/test_decrypt.txt.otp differ