https://ctech.com/studio_help/module-libraries/time/read_tcf/tcf_file/index.htmlTCF File Format and Example The listing below is the full contents of the Time Control File control_tce_cdf.tcf. Blank lines or any lines beginning with a “#” are ignored. Valid lines representing time steps must be in order of ascending time and consisting of: a) a date and/or time in Windows standard format b) a file name with an absolute path or just the filename (if the data files are in the same directory as the TCF file). This is not a true relative path (..\file.cdf and subdir\file.cdf don’t work, but file.cdf does), but gives some of the relative path abilities.Hugoen-us