Hello Maria! I would recommend these 2 links: https://strucbio.biologie.uni-konstanz.de/xdswiki/index.php/Tutorial(First_Steps) and for difficult datasets: https://strucbio.biologie.uni-konstanz.de/xdswiki/index.php/Difficult_datasets Are you having problems with the “generate XDS.inp?” Maybe it’s not installed properly (not in the path) Best regards, Lorenzo quarta-feira, 21 de fevereiro de 2018 20:04 -0300 de [log in to unmask] <[log in to unmask]>: Hello Friends, I am trying to use XDS GUI for data processing in Mac. I am having an error while loading the raw image files. Should I convert them to any specific format? Also is there any good tutorial for the beginners for using the GUI? Thanks in advance.