Hi Martin, I am not sure what I am doing wrong. I am having a challenge  uploading my last two (2) measured climate data files into PVSol. I have converted the files into .DAT  format, as per the instructions but I keep getting "Conversion failed, Formatting error" message  whenever I try to upload same into PVSol.  I have attached the two (2) files for your kind review and support. Could you please convert them into .DAT file for me.  I am  using  PVSOl Premium 2019 (R10) Thanks