Hope all are keeping good. i have a egsphantom file which is word file and can be open in note pad and word pad too. it contains 3 medias like 1.air, 2.tissue and 3.bone. i want to change this file to 2 media like 1.air and 2.tissue. to convert i have to change all 3s to 2s. but it looks difficult to change them manually. is there any quick idea to change these?