Convert VBA (excel macro) to Mac OSX (excel 2011)

Hi there... I have to switch below VBA macro from PC platform to Mac OSX (excel 2011) or write a new one. Target it to paste a picture to the next cell from selection.
PC version:
Sub Paste_picture_to_next_cell()
Dim Filename$, place As Range, myPic As Object, kom$
For Each place In Selection
kom = place.Offset(, 1).Address
Filename = "D:\offer\items pictures\" & place
If FileExists(Filename & ".jpg") = True Then
Set myPic = ActiveSheet.Pictures.Insert(Filename & ".jpg")
With myPic
.Top = Range(kom).Top
.Left = Range(kom).Left
.ShapeRange.LockAspectRatio = msoFalse
.ShapeRange.Height = Range(kom).RowHeight
.ShapeRange.Width = Range(kom).Width
End With
End If
Next
Set myPic = Nothing
End Sub
Public Function FileExists(FilePath As String) As Boolean
On Error GoTo blad
FileExists = Len(Dir(FilePath, vbDirectory Or vbHidden Or vbSystem)) > 0
Exit Function
error:
FileExists = False
End Function