which program can I use to open a Word file that is formatted for use ONLY on a PC?

I hve a word doc that is formatted only for use on a PC. I cannot change the file at the request of the sender. Is there a way to open and fill out the word document on a mac. I used to have Parrelles which allowed me to do so but no longer have this program. Specifically the word document has pre-programmed drop downs in the form. They do not function, nor allow me to type a word into the field.