windows95 comes with a virtual floppy drive. If you have floppy disk images in the "img" format, you can mount them here.
Back in the 90s and before CD-ROM became a popular format, software was typically distributed on floppy disks. Some developers have since released their apps or games for free, usually on virtual floppy disks using the "img" format.
Once you've mounted a disk image, you might have to reboot your virtual windows95 machine from scratch.
No floppy mounted