An affidavit is a written statement which gives evidence. An affidavit is essentially a written version of oral testimony that may be given at hearing or trial in Court.
Here is a list of affidavit templates free to download.
Federal
Commonwealth Statutory Declaration
Divorce Affidavit of Service
Affidavit - General (FCC)
Affidavit of Service - Family Court
Affidavit of Service (FCC)