How do you define large data sets for lookup table based PSpice parts?

Analog Behavior Models are commonly used in PSpice to simulate the response of an electronic component which is defined in terms of transfer function or lookup table.  

For look-up table there are options like EFREQ OR FTABLE to define the data sets. FTABLE and EFREQ are used to plot frequency data triplets in the probe window.  

Typically, to model these ABM blocks, you need to supply values in triplets (frequency, magnitude and phase). You would require to manually type out with a value set in each row for FTABLE and within parenthesis for the TABLE property of EFREQ. 

These tables consist of large data sets and entering them manually is a time-consuming task. How do you associate such huge data while modeling these lookup tables?  

1. Manually enter the data in property editor 
2. Paste data sets as text in the schematic 
3. Any other approach 

We would like to hear from your experience. Your comments will help readers to understand and explore the various other approaches.