Selecting Lines From a Web Dat

Hey,

I am trying to select some specific lines from a “web dat”.

Right now I am using a “convert dat” to create a table from the “web dat” than selecting the rows via a “select dat”. However the “convert dat” is causing touch to slow down significantly because of the amount of data it’s converting.

Is there a way to select specific lines from the “web dat” before sending them through the “convert dat” to help with speed?

Here is an example of my current setup.

Thank You!