you can search and download from the internet. available many excel spreadsheet but I would recommend Program GTB: GeoThermoBarometry (Matthew J. Kohn and Frank S. Spear) for calculate P-T conditions. you can download from the following link: http://ees2.geo.rpi.edu/metapetaren/software/GTB_Prog/GTB.html. And also I've attached some excelsheet may be useful for you.

also I've attached some tables about Fe-Mg exchange reactinos and net-transfer reactions used for geothermometry from book of petrogenesis of metamorphic rocks (Kurt Bucher and Martin Frey)

Estimation of P & T: Thermobarometry A- Geothermometry (from the internet)

attached chapter 15 in F. S. Spear's book: the calculation of metamorphic phase equilibria I: geothermometry and geobarometry.

(This book would be very helpful for you : Metamorphic Phase Equilibria and Pressure-Temperature-Time Paths (Monograph (Mineralogical Society of America Monograph)

I was following this question and all of the answers are perfectly suit for me also... thank you everyone...

Thank you everyone for these helpful answers!

You can use Fe- Mg exchange between Grt-Hbl (Graham & powell, 1984), a good thermometer and Grt-Hbl-Pl-Qz (Kohn & Spear, 1990) a good barometer for amphibolite facies.

Yeah, I have used the barometer, mentioned by you Om, this paragenesis is very well shown in the sample. All of answers from above was useful and comprehensive, thanks to all:)

You can use the Hbl-Plag geothermobarometer of Blundy and Holland. It is an excel file and availabel for download

Attached the HBL-PLAG

For Hbl-Plag geothermobarometry of metamorphic rocks such as amphibolite you have to be careful that whichever spreadsheet you use isn't based on a geobarometer experimentally calibrated in the presence of a melt phase (i.e. intended for igneous barometry such as the Anderson and Smith, 1995, calibration), except perhaps if you were investigating migmatites. Bhadra and Bhattacharya (2007) provide an alternative calibration for amphibole-plagioclase geobarometry of garnet-free metamorphic assemblages which may be more appropriate in such cases.

great, is anywhere downloadable version (e.g. pdf-file) of the article after Bhadra & Bhattacharya (2007)>?

http://ammin.geoscienceworld.org/content/92/4/491.full.pdf+html

Bhadra & Bhattacharya (2007)

Also, Ti-in-biotite is another possibility for certain metapelites. This link has the spreadsheet and references:

http://www.geol.lsu.edu/henry/Research/biotite/TiInBiotiteGeothermometer.htm

thank you:)

Thank you all! that was very useful.