On android, I click to download instructions. The little window pops up at the bottom to open the file. I click it then it wants me to choose "Open with" and give unrelated prorams to choose from such as phone, messages. In my download folder, it's there but with an icon of a plain sheet of paper. Not word, not pdf. I never had a problem with this before on Presto. I have no program to open the file. I did have the problem with Maritz old site's instructions. What program do I need to open Presto instructions?