Problems installing a downloaded version of Design Premium CS5.5
I have a Mac Book Pro with OS 10.8.5 and Adobe Design Premium CS5.0 installed. I have downloaded CS5.5 at least five (5) times from the following address:
https://helpx.adobe.com/uk/creative-suite/kb/cs5-5-product-downloads.html
and every time I try to install it I get a message saying something like "Installer can not be opened" (I have a Swedish version so it is not in English). Could anyone please tell me what the problem could be?
Best regards
Magnus