I'm trying to open a file from a CD.  The book instructions are to download this Truesizer program.  I have Windows XP.  I need to convert the file to a .sew format.  If I try to open the .emb file I get the following message:

This file's format does not match the expected format for this extension.

Native designs may have been created in a more recent version, and updating your system may allow the design to be opened.  For other design files, the source software may be creating non-standard formats.  Check with the source of the file.

When I try to open the .jef file I get this message:

Not enough storage is available to process this command.