how to overcome from this problem ??

hello everyone can anyone help me !!
I have created a .csv file in excel2007 and uploaded it to my gmail account but when i imported those contact to my facebook account then every time facebook tells me that " everyone on this contact list is already on facebook or has already been invited" at facebook". I am not understandingthat why that accuring evrytime even i upload a new contact list the problem is same.
Even someone tell me that your saved file wil not not be in proper manner then i create in again then i upload it but.... the problem is same.

Plz help me what should i do in this conditaion ???

They Dont need to be invited since,

1. They are already Joined in facebook!
2. They Are Invited by someone else already!

Can English become even simpler?

~ExP~

i invite myself (another gmail account ) then also it happend. rather in my list or in my contact list many persons are not on the facebook then also facebook coments same. whats the reason. I cancelled all invitation to my invited friend not only i lost all invitation after doin cancletion but also i cant add them also them AGAIN.

facebook friend invitation is gone