This free Excel UDF outputs all text from a comment in Excel. This benefit of this UDF is that it doesn't display the comment author's name. This means that you will only see the actual comment text and not who wrote the comment. This is useful if you don't care who wrote the comments or if you don't share your workbook and so all of the comments are yours.
This function will only output comment text, so make sure to point the range cell reference to a cell that contains a comment.
Function GETCOMMTEXT(rCommentCell As Range)
Dim cmnt As String
On Error Resume Next
cmnt = WorksheetFunction.Clean(rCommentCell.Comment.Text)
GETCOMMTEXT = Right(cmnt, Len(cmnt) - InStr(1, cmnt, ":", vbTextCompare))
On Error GoTo 0
End Function