Find The Affidavit Format For Name Change Format For Name Change Affidavit To Be Attested By Embasy?

Format for name change affidavit to be attested by embasy? - find the affidavit format for name change

Can anyone advice me the correct format for "name change affidavit that could be presented to the British Embassy for the certificate to apply for a visa as an engineer, though my name on my passport and professional certificates?

Thanks