USB Mass storage device - Save data to file

Hello, I have DE10-Lite board and I'm using Quartus Prime Lite Edition.

My goal is to run something on the board and i want the output to be saved in a txt file.
My code is correct...I think but it doesnt seem to write something on the file. I've done some research and i found out that i need to configure the usb to mass storage device, please correct me if my wrong.


This is my code for a simple 2 to 1 mux just to make sure i get it right.

module test99(
input wire a,
input wire b,
input wire s,
input wire clk,
input wire file_enable,
output wire y
);
// Mux logic
assign y = s ? a : b;

// register to hold the data to be saved
reg [15:0] data_to_save;

// Initialize the data
initial begin
data_to_save = 16'h1234;
end

// Save data to a text file when file_enable is high
always @(posedge clk) begin // Use the clock signal
if (file_enable) begin
$fopen("output.txt", "w"); // Open the file for writing
$fwrite("output.txt", "Output (y) is: %b", y); // Write data to the file
$fclose("output.txt"); // Close the file
end
end
endmodule

and this is on my top module that was created by the program, so i dont need to go to the pin planner, i just call my module from there.

test99(.a(SW[0]),.b(SW[1]),.s(SW[2]),.clk(MAX10_CLK1_50),.file_enable(SW[3]),.y(LEDR[0]));


I have created the file output.txt and saved it in the same folder.