I recommend playing around with the Import Tool. I was able to take your file and import it as a table with the first variable being strings with the text from within the [] brackets and the second being a double of the value in the before the "None". To do this, I added custom column delimiters ([, ], and ') to separate the columns from one another and checked "Treat Multiple Delimiters as One" in the delimiter options. I imported the first column as "Text" and the second as a number and named the variables Headers and Time respectively.
Here is what the tool looked like when I was done and what the output was.
