JAN

Status

Field	Value
Extension(s)	`.jan`
Common ecosystem	Janome Digitizer
Format family	Native working file
Satin Studio status	Reference only
Open / import	No
Export	No
Confidence	Medium.

What it is

JAN is a Janome software working format, distinct from machine-ready JEF.

Satin Studio behavior

Satin Studio documents this format for identification and inspection. It does not open or export the file.

Versions and variants

JAN is a Janome working format, distinct from JEF. Version behavior is not documented here yet.

File identification notes

Exact object model and version behavior are unverified.

Observed structure notes

No reliable JAN byte structure is established here.
Treat JAN as a Janome working-file lead that likely contains higher-level design state separate from machine-ready JEF stitches.

Structure sketch

JAN is a working-file lead, not a known machine stream.

struct JanWorkingFileCandidate<'a> {
    // Object model, version marker, and stitch extraction are unverified.
    raw: &'a [u8],
}

Compatibility evidence

The notes above help identify and inspect the format; they do not imply import or export support. Keep the original file and record the machine and software that produced it.