Hi Igni,
There are several complications with your submitted data file. First off, this is an ASCII data file, even though the extension says *.xls. You can open this file up perfectly in Notepad or Wordpad, etc. Second, you really need to put columns 2 and 3 together so that in DIAdem you have one DateTime channel in DIAdem instead of two separate Date and Time channels. Third, you have multiple header lines and also empty lines spread throughout the body of the data file. I have written an ASCII DataPlugin that tackles the first two issues but not the third. Tell me why there are multiple sections stacked vertically in the file and what you want to do with them, and we'll see what can be done.
Brad Turpin
DIAdem Product Support Engineer
National Instruments