Why is there semicolon at the end of values?

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Hi! I would like to ask if there are any possible explanations why the interval table has semicolon after each Au_ppm numeric value. I imported the interval table in csv format following all of the instructions, but for some reason semicolon appears anycase. When I am importing the data to LeapFrog, the program shows that the interval table is empty and does not have any values. Where the issue could be and is there any possible solution?

Thank you in advance for the answer!