I just got a 3d printer xyzzy printing I don’t know what to do now because I can’t download the software the company is gone for it I need help for this
Well, you usually just need a slicer (e.g. Cura) to prepare the model and you can copy the result to an SD card, which gets plugged into the printer.
I know not much about such printers, but if it has a display and controls you should be fine by selecting the newly added file.
If the printer (which I assume) has repetier firmware on it, you probably need to change some options to disable Marlin features within the slicer.
However. As you may noticed a little more information is required to properly solve your issue. 
Can you tell is what model you have? As Geit noted, any open-source slicer like Cura or PrusaSlicer should work with a “newer” XYZPrinter (aka Da Vinci)–given what I’ve read online (that they work with Marlin-flavored g-code). You would just need to create a custom configuration; we can help with that effort.
Cheers
I just got a da Vinci Nano. It came with no software. I managed to find it on the web (don’t remember where). Installed and it printed one test. But it requires the software to be registered with the company and that page is no longer available. Now the software refuses to run because it requires a login. I tried Cura and it does not work even with changes. The Nano is not on their list of compatible printers.
Well, this is a problem with locked in printers. It works as long until it doesn’t.
I would not try to get the stuff working again with official software and investigate if there is a firmware replacement. To be specific marlin.
Also you need to know if there is a way to flash the new firmware.