UBC encourages that legally-protected personal financial information be encrypted if sent over public networks, such as the internet. You may also need to protect information your office considers confidential regardless of any legal requirement. The below documentations describe ways to encrypt files prior to sending them via e-mail or storing them.
Excel (Win) – How to password protect and encrypt a workbook
Excel (Mac) – How to password protect and encrypt a workbook
Word (Win) – How to password protect and encrypt a document
Word (Mac) – How to password protect and encrypt a document
Encrypting a Powerpoint 2010 File