I will be discussing only the key elements of the code here.

Sheets(Array("Cover", "Interval Data", "rawData")).Copy
This list will create a new workbook containing the 3 sheets that we have included within the Array() parameter. If your report has more sheets feel free to add them.

Set objfile = New FileSystemObject

If objfile.FolderExists(xDir & xMonth) Then
If objfile.FileExists(xPath) Then
objfile.DeleteFile (xPath)
newWB.SaveAs Filename:=xPath, FileFormat:=xlOpenXMLWorkbook, Password:=””, WriteResPassword:=””, ReadOnlyRecommended:=False _
, CreateBackup:=False

Application.ActiveWorkbook.Close
Else
newWB.SaveAs Filename:=xPath, FileFormat:=xlOpenXMLWorkbook, Password:=””, WriteResPassword:=””, ReadOnlyRecommended:=False _
, CreateBackup:=False
Application.ActiveWorkbook.Close
End If
Else
xNewFolder = xDir & xMonth
MkDir xNewFolder
newWB.SaveAs Filename:=xPath, FileFormat:=xlOpenXMLWorkbook, Password:=””, WriteResPassword:=””, ReadOnlyRecommended:=False _
, CreateBackup:=False
Application.ActiveWorkbook.Close
End If

The above code checks if the correct folder exists for the report to be saved or not and creates one if not existing. This also takes cares of overwriting the existing report in case you need to re-run the report again during the same day.
Creating the List of recipients

currentWB.Activate
Sheets("Email").Visible = True
Sheets("Email").Select

strEmailTo = “”
strEmailCC = “”
strEmailBCC = “”

xStp = 1

Do Until xStp = 4
Cells(2, xStp).Select
Do Until ActiveCell = ""
strDistroList = ActiveCell.Value
If xStp = 1 Then strEmailTo = strEmailTo & strDistroList & "; "
If xStp = 2 Then strEmailCC = strEmailCC & strDistroList & "; "
If xStp = 3 Then strEmailBCC = strEmailBCC & strDistroList & "; "
ActiveCell.Offset(1, 0).Select
Loop
xStp = xStp + 1
Loop
The above code will create the list of people for whom the report is intended. We make use of the Do Until Loop here to update the 3 variables to hold the TO, CC and BCC list. The actual email addresses are captured from the Email sheet of the report template.
Please note: there should be no blanks in the list when you are defining the same.

Set olApp = New Outlook.Application
Dim olNs As Outlook.Namespace
Set olNs = olApp.GetNamespace("MAPI")
olNs.Logon
Set olMail = olApp.CreateItem(olMailItem)
olMail.To = strEmailTo
olMail.CC = strEmailCC
olMail.BCC = strEmailBCC
olMail.Subject = Mid(xFile, 1, Len(xFile) - 4)
olMail.Body = vbCrLf & "Hello Everyone," _
& vbCrLf & vbCrLf & "Please find attached the " & Mid(xFile, 1, Len(xFile) - 4) & "." _
& vbCrLf & vbCrLf & "Regards," _
& vbCrLf & "Chandoo.Org"
The above code creates a new instance of Outlook and then logs in to your default mailbox, using which we will be sending the mail out to the recipients. We also create the body of the mail and specify the To, CC and BCC list.

olMail.Attachments.Add xPath
olMail.Display