Convert phb to otb

What is the difference between .phb and .otb?

Description: The PHB Brother ULT Embroidery Format is a proprietary embroidery file format created by Brother. It is used to store embroidery designs for Brother embroidery machines, and can be read by Brother's embroidery software. The PHB file format is not compatible with other embroidery software.; The OTB (Nokia Over The Air Bitmap Image) file format is a type of image file developed for use on Nokia mobile devices. These files are specifically optimized for efficient transmission and display on Nokia phones, particularly older models. The OTB format is designed to be compact to facilitate over-the-air (OTA) transmission, which was an essential feature in the era of limited bandwidth and data transfer capabilities. The format supports monochrome graphics, making it suitable for simple images like icons and logos.