The .spe files contain the spectra.

Below: a cutout of one of my yorick codes that extracts stellar 
  parameters from the filenames...

  // For abundances:
  factab=1.e4;

  // Teff
  teff = 0.;  i1= (strfind("_t",mm))(2)+1;
  ndum=sread(strpart(mm,i1:i1+3),teff);
  // logg
  logg = 0.; i1= (strfind("_g",mm))(2)+2;
  ndum=sread(strpart(mm,i1:i1+3),logg);
  logg/=100.;   // now standard logg(cgs gravity)
  // mass
  mass = 0.; i1= (strfind("_m",mm))(2)+1;
  ndum=sread(strpart(mm,i1:i1+3),mass);
  mass/=100.; // now in Msun
  // Oxygen abundance
  thisO = 0.; i1= (strfind("_o",mm))(2)+1;
  ndum=sread(strpart(mm,i1:i1+5),thisO); // Oxygen (12-log)*1e4
  thisO /=factab ; // now standard   12+log(O/H)
  // Carbon abundance
  thisC = 0.; i1= (strfind("_c",mm))(2)+1;
  ndum=sread(strpart(mm,i1:i1+5),thisC); // Carbon (12-log)*1e4
  thisC /=factab ; // now standard   12+log(C/H)
  // Iron abundance
  thisFe = 0.; i1= (strfind("_fe",mm))(2)+1;
  n=sread(strpart(mm,i1:i1+5),thisFe);
  thisFe /= factab ;  // now standard   12+log(Fe/H)
  // Microturbulent velocity
  xi = 0.; i1= (strfind("_xi",mm))(2)+1;
  n=sread(strpart(mm,i1:i1+1),xi);
  xi /= 10.;  // now in km/s


  // Derived quantities

  // C/O ratio
  // Actual expression : (C/H)/(O/H) = 10.^(thisC-12.) / 10.^(thisO-12.)
  CovO=10.^(thisC-thisO); //   simplified exact expression

  // C excess : 12+log( (C-O)/H ) = 12+log( (C/H)-(O/H) )
  //                            = log( 10.^thisC - 10.^thisO )  after calculus
  if (thisC > thisO ) {
    CmO= log10( 10.^(thisC) - 10.^(thisO) );
  } else {
    CmO=-1.e-10; // default value when C<O
  }
  // Metallicity [Fe/H], assuming 12+log(Fe/H)=7.563 for the sun and He constant
  FeSurH = (thisFe-7.563);