NEVER open a Word document that is located on a USB drive OR save a Word document directly to a USB Drive.
Corruption of the document is an almost certain consequence and in most cases it is so catastrophic that it is not possible to recover anything from the document.
If you have a document that you cannot open, if you send it to me by e-mail, referencing this thread in the covering message, I will see if anything can be recovered from it.
If the document is too large to attach to an email message,
upload a copy of it to the following folder of my OneDrive
https://1drv.ms/f/s!AmuIXmFDy-1a8nP3RpgnYHp-5zXK
and send me an email so that I know that it is there