Hi, I am trying to plot multiple text files with many block sizes in matlab, i was able to plot each text file. My problem. My problem is with header information reading. The header information has same string comments such as, date, year, measurement types, but header length can vary between 20-25. My question is that how can i handle varying text file header information? Im trying to use some character signs or string from the text header to make skip and jump into numerical matrix. By the way my numerical matrix has 24 (rows) by 5 (Columns). Number of rows are not always 24,but can also vary between 1-24 depending on text data collection ( I was able to handle matrix indexes, just for your information). Thanks!!!