These are, respectively, static cursor and animated cursor files. When downloading cursors, they usually come in two different file formats. Not only are they a little tricky to set up, but cursor download sites can also be a hotspot for viruses and malware which is definitely something you don't want to end up accidentally installing. However, while downloading an image to use for your desktop image or profile is very easy to do, cursors need a little more care and attention when installing them. After all, it makes for a nice change from the default white arrow! Some people enjoy customizing their cursor in Windows 10 so that it fits their computer's theme a little better. From desktop backgrounds to unique computer cases, there's a lot of ways you can make your computer your own. People always enjoy changing how their computer looks to suit their tastes.