When attempting to upload a word doc to internet service sites, I incur error messages stating that its not a compatible format. The websites make the suggestion of compatible formats like .doc, .rtf, pdf, etc. and give a file size limit (of which my file is much smaller). I am attempting to upload in the following formats: .docx, .doc, .dot, .rtf, etc. I am also trying to make it compatible to word 97-2003 document, macro-enabled, etc. to no avail. What is causing this? What can I change in saving the document to make it compatible?