DRM on Data_Process_of_Rest_fMRI_Part1_English.pps file?

 Hi there
When I try and open the Data_Process_of_Rest_fMRI_Part1_English.pps file I have downloaded for instructions I get an error message telling me that this has DRM rights and that I don't have the password to play it. "this presentation is protected by a password or DRM. To access the presentation you must have a version not protected.."

Can you let me know what I'm doing wrong.

Many thanks

Just click "Read Only" and then you can open it.
Best wishes!