Hi, Ramtin:
Your best bet for help with this problem is to contact Tech Support. There are several different ways to read data into SAS -- the method will depend on whether there's a space between every number, whether the values are separated by commas or whether every column starts in the same position in the file.
You may not be able to import the data without writing a program or having someone help you write a program. Generally, you do not have to worry about the LRECL of your file, unless the file is bigger than the SAS default.
However, you might consider contacting SAS Tech Support for more help. Tech Support has the resources to look at your file and make recommendations about the best method to read the data into SAS.
To open a track with Tech Support, go to:
http://support.sas.com/ctx/supportform/index.jsp
cynthia