Im having a problem with writing a file.
In 504571p3 the file 504571NF is output for use in 504571p4,
But when I run 504571p4 with the file the program halts.
If p4 is run with custmast.dat then I get the desired results.
What is wrong with the way Im writing 504571NF. As this is not the same as custmast.dat
The programs and relative files needed are attached.
any help much appreciated