Thank you for the Excel file. It makes the task an easy one.
Go to
File=>Open
In the Open dialog box
Navigate to the folder that has the Excel file.
Select to read in xlsx files
Click on the Excel file
Specify to use the JMP Excel Wizard to help to open the file
In the JMP Excel Wizard window,
Specify 3 as the Number of rows with column headers
Specify 4 as the Data starts on row
Click on Import
The data table will open and it will look like
Open the Graph Builder platform by clicking on the Graph Builder Icon on the icon bar at the top of the window
In the Graph Builder window
Drag the column D-Time to the X axis drop area. The D-Time column is selected, since it contains all of the values for the Times
Select all of the Temperature columns, and drag them to the Y axis drop area
Click on the Line Chart Icon at the top of the window
You will now have a screen that looks like
You need to take the time to read the Discovering JMP and the Essential Graphing documents from the JMP Documentation Library under the Help pull down menu
Jim