Audit acceptance letter format

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.examplesofletters.com/sample-audit-acceptance-letter-2063/&ved=0ahUKEwjS0rnpy9DaAhVFRY8KHfpPDikQFggxMAM&usg=AOvVaw3X-8ptJv76sgwImHjeeDxJ

or

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.edb.gov.hk/attachment/en/sch-admin/sbm/corner-imc-sch/sample%2520audit%2520engagement%2520letter.doc&ved=2ahUKEwjS0rnpy9DaAhVFRY8KHfpPDikQFjACegQIBRAB&usg=AOvVaw1OAgT8cFWbbpcgtqE-XBVD