Hi,
I suggest you can extract the rows when the data is larger than 15 in column 3.
Please try to run this following script in Script Window:
(I assume your data is in Book1 sheet1.)
range aa=[Book1]Sheet1!Col(1), bb=[Book1]Sheet1!Col(2), cc=[Book1]Sheet1!Col(3), dd=[Book1]Sheet1!Col(4);
string strCond$="cc >= 15";
wxt test:=strCond$ ow:="Extracted Rows"!;
Then the rows you need will be extracted in Extracted Rows sheet.
Also, you can refer to the example in this page:
http://www.originlab.com/www/helponline/Origin/en/Programming/mergedProjects/labtalk/Script/Worksheet_Data_Manipulation.html#Extract_Worksheet_Data
Thanks
OriginLab
Jacqueline