Use the version of word2003, because the current mode of office software on the market is: advanced software can open low-level software, which means that 2007 can open the version of 2003, but vice versa, so if your resume is the 2007 version, it can't be opened on the 03 version of the computer, and not every enterprise will install compatible equipment. In order to make your resume safe for others to see, I suggest you use 2003!