Use YODAT to extract HXT data from the reformatted database. There are four key
variables that are necessary for HXT data analyses described below: index, data,
ssss, and infil.
Here index, ssss and infil have similar contents as those in SXT data.
The variable data contains compressed count rate data from HXT in the four
energy bands. It has the form data = bytarr(4,64,4,m), where 
is the number
of major frames extracted from the reformatted database.
The first ``4'' indicates the four energy bands of HXT, the next ``64'' indicates
the 64 subcollimators (SC's), and the second ``4'' corresponds to the fact that HXT data
appears four times in one major frame.