How to Remove Phishing E-mail “no-reply@ukmail.com”?

Got an e-mail from no-reply@ukmail.com, with Excel attacment(.xls). Seems like phishing, no response from AVG free. Why?
Now second odd message with xls-attachment. Spyware trying to get in? Both Firefox and AVG accept these messages.

Once you receive e-mails with xls-attachment from no-reply@ukmail.com, your computer might be infected by malware. Please make sure if you have recently done these things:

Downloaded certain software from the internet (especially from third party websites);
Downloaded and install attachments from spam emails or emails received from your contacts but seems strange;
Received share files from unknown people or clicked links to download share files;
Visited corrupt sites or porn sites or clicked random popups or links;
Inserted infected removable internal drive to your computer
...