I used iAntiVirus software which was endorsed by Macworld so I guess it is okay.

Thanks for putting my mind at rest.

Is there a reliable software to remove DRM from such files?

I really would like to open this particular file.

jaybass

OS 13.6.6 iMac (Retina 5K, 27", 2017, 3.4 GHz Intel Core i5, 24 GB RAM, 2400 MHz DDR4. SuperDuper. 1 TB Lacie HD