Why can I not attach a file to my email?

Why can't I attach a file to my email in yahoo?

• I have the right address, have typed my letter and am trying to attach a file. For some reason it does not attach. When I go back to the email it has been erased. HELP

• Answer:

  It's a problem that they're working on. We're having the same issue. We haven't been able to attach anything all day today, our contacts aren't working, nor can we use the search. I finally found a notice that reads: "We are aware of a temporary glitch some customers are experiencing when attempting to attach documents to outgoing email. The error message received is File can't be sent. You are given the option to Try Again. The work-around is to select Try Again and then to select Switch to attach your files. We understand utilizing your attachment function in your email is important; we will have this issue resolved soon!" I guess we have to hang in there, but some of us have important files we have to send. I hope the fix it soon.