FLS File What is an .fls file and how do I open it?
An FLS file may also be a firmware update file used by Lexmark printers and multifunction products (MFPs). It contains data that fixes a firmware bug, allows a device to operate more efficiently, or adds compatibility with additional, users install an FLS file by placing it on a USB drive, connecting the drive to their printer or MFP, and then opening the file on their ...