EXP File

EXP is the proprietary stitch format developed for Melco embroidery machines, which were historically among the most popular commercial single-head machines in the United States. Bernina, a separate embroidery brand, also uses EXP as one of its supported native formats. The file is similar in structure to DST but uses a different command encoding.

EXP files come in two flavors. Melco EXP includes a separate condition file (.con) that defines color and trim information. Bernina EXP is self-contained. The distinction matters when transferring files between brands, because a Bernina machine reading a Melco EXP without the condition file will often skip trims or default colors incorrectly.

Most contract digitizing services include EXP as a delivery option alongside DST and PES. Bernina sewing-and-embroidery combo machines popular with home embroiderers and small studios will accept EXP natively, making it a useful format for customers running that equipment.

For most commercial production, DST remains the safer default. EXP is requested when a customer specifically owns a Melco EMT, Melco Bravo, or Bernina machine and wants the file in its native dialect for maximum compatibility.