In QTP, there is data table used , which is used at runtime.

-In QTP, select the option View->Data tabke.

-This is basically an excel file, which is stored in the

folder of the test created, its name is Default.xls by

default.

Actually QTP having the Datatable default ExcelSheet(Global 
sheet and PerActionsheet)


I decided to enter the values at the time of running the 
script then i will use the datatable parameterization.

At the time of execution that datatable converted into run-
time datatable it is stored in default.xls folder  and 
appeared  at result window as a run-time datatable (with 
input and output values)

Run-Time Data Table is the excel sheet that is generated
during the run-time or during the execution of the script.
In the Results window, if you expand the results, the second
entry will be the run time data table. If your script writes
any values to the excel sheet then all those values will be
seen in the run time data table.