tl;dr: "extra" functional characters in the log-file from GPU-Z causes blank lines in LibreOffice Calc(maybe excel too). As i tried to make a benchmark of a game i stumbled over a little problem with the log-file of GPU-Z. Importing the .txt LogFile into LO(LibreOffice) Calc resulted into blank lines between each data set(red lines in the image). First i thought it was because of the commas at the end of each data set but deleting them didn't solve the problem. With Notepad++ i finally could find the "bug" that causes those blank lines. Never used the option to show functional characters in Notepad++ but only Notepad recognized those blank lines(neither did the editor nor the LO Writer as you can see in the image). After i deleted the "CRs", the blank lines disappeared in Notepad++ and in LO Calc. Saving it once with LO Writer in the text format(writer asks you if you want to use odf or txt) "deleted" those "extra" functional chars from the file. So as a workaround i save the log-file once with LO Writer and then import it into LO Calc. If it isn't intended i hopefully see a fix in an upcoming update.