To use these files you must first decide which Print Type you use, conventional offset (Traditional) or Flexo.
The screen sets are named to reflect if they are Agfa Balanced Screening (ABS) or HyScreen (given the minimum pixel size), the resolution, and screen ruling.

For instance, the name "FLEX_ABS_2032_175.HTD" indicates the ABS screen set for Flexo print type with resolution 2032 DPI and screen ruling 175 LPI. The name "FLEX_04PIX_2032_156.HTD" indicates the HyScreen set with the min dot size 4 pixels, 2032 DPI and 156 LPI.

Screen sets are available at three resolutions: 2032, 2400 and 2540 DPI. For every resolution the ABS sets are built for five+ screen rulings corresponding to the resolution, and the HST sets are built for min dot sizes in the range from 1 pixel to 16 pixels, each of which exists for the five+ corresponding screen rulings.

Read the recommendations of how to select appropriate screen set presented on the Getting started page.