It sounds like the file isn’t a PDF, which is why Adobe can’t open it. Check the file type—if it’s a ZIP, try extracting it with a file manager app. If it’s a LEGO file like .io or .ldr, you’ll need to open it on a computer using BrickLink Studio, then export it as a PDF. Once you know the file type, converting or viewing it will be easier.I uploaded instructions for a Lego moc model. I have the newest moto 5g. I have Adobe. All I get when I try to open, it says file not supported. Can I change the file to PDF?