In order to keep your contents safe and secure, you can protect your word or excel documents with a password. This will prevent any unauthorized access to your documents. Office Online does not provide these features, but you can control file sharing options to restrict or allow access to the online document to anyone.
In the case of Google Docs, your google account password is the password for all your documents, keep your google account password safe and your documents are safe. You can give access to specific documents to specific persons also restrict the levels of access. Follow the steps below to password protect your word documents. The same procedure is true for MS Excel files.
Open the MS Word document and click on the File menu in the top left corner.
You will find the Protect Document option in the Info of the document.
Click the Protect Document button and a drop-down menu will appear. Select the Encrypt with Password option
Enter a strong password in the password dialogue box and click the OK button.
Re-Enter the password in the next window and click the OK button
In the Info option, you can see that your document password protected.
You will need to enter the password every time you open the file
The important thing to note is that the password is not recoverable, so it is important that you should make sure that you keep a record of your passwords in a safe place, in case you forget a password. In addition, the password is case sensitive.