EXP is the expanded stitch format used by Melco and Bernina embroidery machines. With SewFlow you can turn a flat PNG into a machine-ready EXP file in seconds — no Bernina software, no manual digitizing.
Step-by-Step: PNG to EXP
- 1Open sewflow.com/image.
- 2Drag in your PNG (transparent backgrounds work best).
- 3Set the design size to match your hoop.
- 4Review the detected colours and override any thread to a closer match.
- 5Choose EXP as the output format.
- 6Preview the stitches, then click Download.
- 7Copy the .exp file to a USB stick and load it on your Melco or Bernina machine.
Convert your PNG to EXP now:
Open Image Converter →Get the Cleanest EXP Output
- •Use bold, flat artwork — embroidery cannot reproduce photographic gradients.
- •Keep small designs above 30 mm so fine detail survives in thread.
- •Limit the palette to a handful of solid colours to reduce thread changes.
- •Always test stitch on scrap fabric before committing to your final garment.
Colours Are Confirmed at the Machine
A plain EXP file stores colour changes as stops, not named threads. SewFlow places the stops correctly — just confirm your thread order at the machine.