Since support is about to end for 2003 version, I think that it may be time to change. If I go to either 2007 or 2010 version, I think that I understand that "opening and reading" an "XLS" file will not be any problem since you can use the
Compatibility Pack". I am not so sure about the templates ( XLT ) files. Will I be able to continue those files, because I use them on a daily basis. Will an XLT file open and be able to be used in either 2007 or 2010 ?