My best guess is that what you need to do, is to copy and past into an Excel spreadsheet, all rows and columns from row 25 through row 5941.
Then save the spreadsheet to your hard drive.
Next, go back to JMP and then open the Excel spreadsheet into JMP.
There are several rows of data that appear to be wrongly lined up. You will need to go down through the rows, and copy and paste the offset rows back to where they belong. An example of this is row 50 and 51 in the original data table.
Once you have manually moved the various wrongly lined up rows, you can then delete all of the columns that are no longer needed to hold the invalid lined up data.
Finally, the graph comparing the pupil size vs time can be created using the Graph Builder platform
Graph=>Graph Builder
Jim