1. What is Wilcom EmbroideryStudio e4.5? EmbroideryStudio e4.5 is part of Wilcom’s e4 series (released around 2018–2020), bridging the gap between the advanced Digitizing edition and the simplified Decorating edition. It is designed for professional digitizers and production managers who need precision stitch control, design editing, and output optimization for multi-head embroidery machines.