I'm not familiar with excel..quit using it years ago..I use open office. All I do is change the lsdl to txt load it, edit it and then save it as a text file using "space" as the delimeter and then rename the txt extension to lsdl. That's it. If you can do the same in excel, you should be all set. If not, then save your edited file as a text file comma delimited. Then open it in notepad and replace all commas with a space. Save it and rename .txt to .lsdl. That's it. If your unsure how to do it, attach your completed schedule here and I'll look at it for ya.