Hello!! I saved a txt file with acquired data (with the funcion "write string to spreadsheet file") in this format:
hour.minutes.seconds data0
nour.minutes.seconds data1
............
Then I have to open this file and transform the first column in total seconds (each element of first column is in string format, the problem is that I have some dot to separe hour minutes and seconds):
tot seconds data0
tot seconds data1
........
I don't know how to do this.
I attach the file with saved data.