My Word files in OneDrive come to my Windows 8.1 tablet as read only and I can't see any way to make them editable. Can you help?

Could this thread be helpful for you?

http://answers.microsoft.com/en-us/onedrive/forum/sdfiles/cant-make-changes-to-skydrive-due-to-admin-rights/2faec4e6-e923-493b-ba84-9d7ede30a977

Hi,

Are the files uploaded by yourself or you access the files via a shared link in OneDrive?

If the files are shared files, then you might check the following link, it is related to "how the owner shared the file":

Share files and folders and change permissions

http://windows.microsoft.com/en-in/onedrive/share-file-folder

If the files are uploaded by yourself, then you might check the files provided by T. Kujala.

Regards.