Hi i want to change the path of a spectrum. I used Experiment:Edit Spectrum: (selected my spectrum) : File Details: and then changed the data file name. This did not work. I have two problems After changing the path and opening the spectrum window i dont find the spectrum. So i saved my changes closed the project and opened it again. However inspite of saving the project after changing the spectrum path, when i open the project i still find the old path. I m confused Can some one tell me what is going on? Thanks Karthik