Hello,
Just put this in the master script;
ch1=OPEN("TEXT","Mytextfile.txt","SEPARATOR='\t',MODE=RO")
n=INPUT(ch1,1,1,value01, value02, value03, value04, value05)
CLOSE (ch1)
...so it reads a file named "Mytextfile.txt" from your Archicad Data folder.
This example takes in five values from the first row, starting from the first value.
'\t' means that values are separated with a tab which means the same as an Excel file
saved as a 'Tab separated text'.
Hope this helps.