To edit the email templates select the according entry from the survey menu:

Using replacement function.

In email, you can use some specific keywords to use token information: see Emails placeholders to have the complete list of placeholders.

Email attachment feature.

From 2.1 forwards, LimeSurvey will officially support adding file attachments to emails sent by the system.

The following templates support adding attachments:

Attachments can be added at the bottom of the email template editing interface. Email attachments are uploaded on a per survey basis.

To decide if an attachment should be sent on an individual basis it is possible to add a relevance equation to each attachment.

All functions supported by the Expression Manager can be used, as well as token attributes if the survey uses tokens.

In case of a notification or confirmation template it is also possible to use question codes used in the survey.

When a file can not be found on the file system, the email will be sent without attachment.
Exporting / importing a survey does not export the uploaded files. The settings for attachments will be maintained, as will the relevance equations.