I have a 8753ES that I communicate with via GPIB. We have a preset that was defined manually and stored to internal memory. I have saved it to internal disk ( floppy ) as well. What I need to do is have that file stored to the internal memory via GPIB. In other words, the PC with the file on it needs to send the contents of the file to the analyzer and have it appear as a preset in internal memory. I know I can use LOADx to load a file from the internal disk with x being the file index. RECAx and RECAREGxx do the same from internal memory registers. I saw something about TITF but I the documentation I read doesn't explain it well enough. I understand it to be indicating the file name but I get syntax errors with the command. Also, using the external disk settings gives me caution warnings about the HP-IB controller being installed. I haven't been able to find a way to use the external disk ( GPIB ) to load the file from the PC. Any help would be appreciated. Thanks!