Please find the requested document attached.
'Allegato' = al-le-GA-to; stress on the third syllable.
Use whenever you are attaching a file to a formal email. This phrasing tells the reader exactly where to look and what to expect.
'In allegato' means 'attached/in the attachment'. 'Troverà' is the formal third-person future of 'trovare', showing polite deference. This structure is the standard Italian business formula for sending attachments.
Le invio in allegato il preventivo.
I am sending you the quote attached.
More direct; 'Le invio' = I send you (formal)
Allego il contratto firmato.
I am attaching the signed contract.
Shorter and common in internal emails
Trova in allegato la documentazione completa.
You will find the complete documentation attached.
Neutral register, suitable for most contexts
Italian business culture values thoroughness: always name the attachment explicitly in the email body. Sending a file without explanation is considered unprofessional, especially with external clients.