Samsung Galaxy Note 3 — Saving altered MS Word files from a PC back to the Note 3.

I recently purchased a Galaxy Note 3 and have transferred my MS Word work files from my PC to the Note 3. I am able to read and alter the files from the Note 3 when out and about; however, when I get home and connect the Note 3 to the computer and add new material to a file it will not save back to the Note 3. It gives me a message saying “ cannot save read only file”. I have installed both Polaris Office 5 and Office Suite 7 on the Note 3 and both allow me to edit files on the Note 3 and save them. Neither will save them from the PC. Any ideas will be most welcome.