Tried to change enxtension for encryption

FileExplorer.c

@@ -669,13 +669,24 @@ int main(void) {
 
                 char fileenstr[5000] = "";
                 char enstr[5000] = "";
+                char fileenname[1000] = "";
 
                 strcpy(lastDirFile, lastDir);
                 strcat(lastDirFile, file_url);
                 strcpy(file_url, lastDirFile); //Copies strings
 
                 file = fopen(file_url, "r");
 
+                /*
+                Trying to change file extension
+
+                chdir(file_url); //Sets current working dir
+                //getcwd(cwd, 1000)
+
+                strcpy(fileenname, getcwd(cwd, 1000));
+                strcat
+                */
+
                 if(file == NULL) { //Error handler
                     text_color(COLOR_RED);
                     printf("\nUnable to find file '%s'.\n",file_url);

FileExplorer.layout

@@ -2,9 +2,9 @@
 <CodeBlocks_layout_file>
 	<FileVersion major="1" minor="0" />
 	<ActiveTarget name="Release" />
-	<File name="license.txt" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="FileExplorer.c" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="10985" topLine="158" />
+			<Cursor1 position="26599" topLine="661" />
 		</Cursor>
 	</File>
 	<File name="colors.h" open="1" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
@@ -17,9 +17,9 @@
 			<Cursor1 position="1954" topLine="0" />
 		</Cursor>
 	</File>
-	<File name="FileExplorer.c" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="license.txt" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="1692" topLine="751" />
+			<Cursor1 position="10985" topLine="158" />
 		</Cursor>
 	</File>
 	<Target name="Debug" top="FileExplorer.c">