I have an excel table – see attached screenshot.
need enter an formula into column J for getting a value from a region C2:E10, based on the values from the columns G,H,I.
So, what formula shold enter into cell J2 for get the value from the cell E3. (indexes are in g,h,i columns),
This mean some nested indirect lookup – and haven’t idea how to do it.

Try this formula in J2 copied down
=INDEX(C$2:E$10,MATCH(1,INDEX((A$2:A$10=G2)*(B$2:B$10=H2),0),0),MATCH(I2,C$1:E$1,0))