Word Encryption Word Docx? Encryption?

Word Docx? Encryption? - word encryption

My friend tried to send me a Word document. (Often I hear so many people.) Ber. Doc changed. Docx, somewhere between her and me and asked for a password.

Sometimes there are files to be sent at work and never had this problem. It is, of course, that nothing, but someone else said yesterday that he had recently sent a Word file. This file is also shown. Docx.

Help?