If the files don´t retain formatting, then one really can use something else, like the free OpenOffice as it will save in a MS format, with that too there is some formatting loss, but at least one doesn´t have to pay for it. I don´t know why Mac users even bother using Office on their machines, the files don´t even retain their formatting when transfered to a Windows PC. Even for Mac users over the years there has been numerous serious security issues from Office.
I avoid Microsoft software like the plague it is.