When you save to file you don't have to use the same password that you are using online. Data in the file is encrypted with the password used for that particular file so if you want to change that password you have to open that file, decrypt the content with the old password and save the content to a new file again providing new password, you can overwrite that file if you don't want to create new file or write to a new file and delete the old one.
That was a good question, I will add that to the FAQ on the website, thanks!
That was a good question, I will add that to the FAQ on the website, thanks!