I rewrote a PRAAT script – shamelessly edited from Mietta’s amazing original – but modified to work well on both MAC and PC.  The scrip opens all the WAVE or AIFF files and matching textgrids, and take a look at the relevant tier (defaults to 3) to extract duration, f0 (pitch), F1, F2, F3, cog. The PRAAT script and readme file are located here. 

Mietta Lenne’s scripts, for those who don’t know, seem to be on Github these days.