What to say in an email to indicate that you are sending an attachment/file.

From eslpod
An attachment is anything extra that is added to or connected to the main thing. In an email, an attachment is usually a file that is also included within the email and that one can open by clicking onto an “icon” (small image, picture).

The most common phrases people use are “attached is/are” or “I’ve attached.”
- “I’ve attached three photos for you to choose from.”
- “Attached is the sales report for the month of June.”

If you want to be a little more formal, you can use the phrases “attached please find” or “please find attached.” These are more appropriate for formal business emails.
- “Please find attached the customer lists for our new products.”
- “Attached please find three documents related to the court case we discussed.”
- “Thank you for taking the time to interview me for the new position at your company. Attached please find a list of my former employers.”

If you are sending a letter in the mail, you can use the “attached” phrases listed above when what you are adding/attaching is stapled to or paper clipped to the letter. If it is not physically attached but included in the same envelop or package, then use “enclosed” instead.
- “Enclosed is an example of the new packaging for our product.”
- “Please find enclosed the reports from the past six months.”