The filenames are of the form:

15_14p80_0p2.awa 
15_14p80_0p2.dat

1) 15 is the zero age mass.
2) 14.80 is the current mass.
3) 0.2 is the metallicity relative to solar.
4) .awa is the input file.
5) .dat is the MERGESPEC file.

There is one case where the naming is degenerate - 10_9p99_0p2 - in
this case the second model has _1 added to the filename.

Because the models crashed for a few grid points I made these changes
to the original grid:

MODEL          PARAMETER GRID     USED

15_14p80_0p2   Teff      29252.   29240.
15_14p75_0p2   Teff      28766.   28770.
10_9p99_0p2_1  Teff      24347.   24340.
10_9p99_0p2    logg      4.074    4.07