did someone email you a dao file and you're not sure how to open it? maybe you have found a dao file on your computer and wondering what it's for? windows might tell you that you can't open it, or in the worst case, you might encounter a dao file related error message.

Write the above sentence using proper case.
Did someone email you a DAO file and you're not sure how to open it? Maybe you have found a DAO file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a DAO file related error message.