Open up the .OBJ file in a text editor. There are too many ways to do this for me to feel it's worthwile including as part of the tutorial, but it shouldn't be terribly taxing. If you now look at the file you'll find that it's a fairly plain text file which describes the model in terms of Vertices (lines starting with "v") Texture (uv) co-ordinates (lines beginning with vt), Vertex Normals (line startign with vn) and Faces (strangely enough, lines starting with f). Almost any of these can be ommitted - for example, Poser apaprently makes no use of Vertex Normals in an OBJ file, so these are something of a waste FOR POSER. However, all we need for a morph file is the vertex positions - so delete all lines which start with vt,vn, of f. No - seriosuly, although Poser was told to produce a "morph" export and it included those, we don't need them and DAZ (or any other model vendor whose models you might produce morphs for) is likely to be upset if you give anyone a file containing the f lines (and/or the vt lines). So just delete the lot, but don't damage the v lines or the morph won't work anymore. you may include or delete any lines starting with # - these are "comment" lines, and are pretty meaningless except to human beings. The process of removing all this extra (copyrighted) baggage is known as "squishing" the morph.