You can e-mail data from an Access database in a number of formats,
including Excel.
However, if your users are going to alter the data and return it to you,
you're opening yourself to a wide range of issues when you try to import the
data back into Access, as Excel (and other options) permit re-arranging data
and don't provide the validation Access does.
For a simple example, suppose you have a date/time field for "ProjectDue".
In Excel, your recipient types in "sometime next week". This is valid in
Excel, but you'll need manual intervention to get any meaningful data into
Access from that.