We do not know about any .edr file type that could be used for conversion to Janome JEF embroidery format. Color palettes from Embird embroidery software are saved as .edr files, but these are color settings not embroidery designs, so direct edr to jef conversion seems unlikely.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
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