Firstly, make sure that the file you want to check is supported by the application. Right-click on it, select Properties, open the General tab and check the format next to Type of file. SewIconz supports only .art, .art42, .art50, .art60, .c2s .clf, .cnd, .csd, .dem, .dsb, .dst, .dsz,.emb, .emd, .exp, .gnc, .hus, .jan, .jef, .jef+, .krz, .ksm, .ngs, .pat, .pcd, .pcm, .pcq, .pcs, .pec, .pes, .phb, .phc, .sew, .shv, .sst, .sti, .tap, .t01, .tbf, .tcf, .vip, .vp3, .***, .wte, .zsk, .4qb, .cqp, .hqf, .iqp, .plt, .qli, .bmp, .cdr, .cmx, .draw, .dxf, .gif, .jpg, .png, .svg, .emf and .wmf. If your file should be supported by the software, I recommend you update the utility to the latest version. After that, if you move the cursor over the icons you should see the information about the pattern. Check the official user guide for further information or contact the developer.