file format of client and sub-con excel files and download exce formate

app/routes/file_format.py

@@ -0,0 +1,27 @@
+from flask import Blueprint, render_template, send_from_directory, abort, current_app
+import os
+
+file_format = Blueprint("file_format", __name__)
+
+@file_format.route("/file_format")
+def download_format():
+    return render_template("ex_format.html", title="Download File Formats")
+
+
+@file_format.route("/file_format/download/<filename>")
+def download_excel_format(filename):
+
+    download_folder = os.path.join(
+        current_app.root_path, "static", "downloads/format"
+    )
+
+    file_path = os.path.join(download_folder, filename)
+
+    if not os.path.exists(file_path):
+        abort(404)
+
+    return send_from_directory(
+        directory=download_folder,
+        path=filename,
+        as_attachment=True
+    )