Reading and Writing a Foreign File

After a "foreign" file has been transferred across the network to the target machine, and if the target machine runs SAS 8 or later, the target machine can read and write the SAS file. A target machine can transparently access a "foreign" file for reading or writing, but not for updating the files.

You can read and write, but you cannot update the files.

Note  

Additional resources are consumed each time you read or write a foreign file.