I have a standard excel file which I have used for several weeks. It is an accounts file and has several worksheets (one for each client). There are numerous macros. The file is usually kept in a dropbox and is accessed by both Office 2007 and 2010. It has suddenly started to appear with the above message on loading the file. My questions are 1) What are the links it refers to and 2) what is the significance of this? and finally how can I disable this message from showing each and every time? Thanks in advance.