You've almost got it correct. To read a file into IDL in this way try this: OpenR, lun, 'testfile.txt', /Get_lun nlines = file_lines('testfile.txt') file = strarr(nlines) ReadF, lun, file help, file print, transpose(file) The key is to get the number of lines in the file, create a string array with that many elements, and then read it in with READF. Also, is the SAVE command intended to save the "file" variable to an IDL data save file? If so you will need to supply the variable name or use the /ALL keyword. -Josh ITTVIS

Hi, I need to read a file file.sav and file1.cnj, then i need restore and to get the structures modelo.imag, conjugado.imag. And to save in the new file - data.dat(line 16). I don't know how to take these structures(modelo.imag, conjugado.imag) and save in this file data.dat CAn you help me.?? My code: http://pastebin.com/GRmNtags