Cant upload new extension to the Exchange

[gjhdigital]

I am trying to upload some new extensions to the the Exchange and I am
receiving the following error:

The following error(s) must be corrected before this form can be completed:
There was a problem parsing your MXP file (The cause of this exception was
that: java.io.IOException: Not enough space.). Please choose a new file.

My extensions are fine.
I have tried using Firefox and IE and both report the same error. I have
emailed [email]community-manager@macromedia.com[/email] but have had no responses.

thanks