advanced microsoft access training london - Read only access

Hello

This question could be related to any microsoft program but I'll post it here since it has arisen since I have been on your access course. On a CD that you gave me with the course, I notice that the files are read only.

I would like to protect some files that I use in the same manner. I have noticed on the files at work, if I specify them to be read only, you can still go into properties, untick read only, and then access the files, I notice after a bit of investigation that this is not the same on your files. Also you can click Save as and save it as a different name and also get access to the content, which is also dulled out on the files on this CD

Please could you tell me how to protect my files to the same level as the files on the CD you gave me are? It would be extremely helpul for when we are sending out CDs to clients

Thank you.