Converting Excel to a web database need data, such as this:
You should first select all data, before clicking the File.
Click Export (1), press CSV (2), and then press Save As (3).
Name the file (1), and press save (2).
In conclusion, with these steps, you have what you need to import with access, if you so wish, and keep working on the database. We have just converted the data into a web database that looks like this: