I’m not sure what you’re asking.
AS/400 files are always on the Hard Disk.
Do you want to make another copy of that file – different lib or different name?
then use CRTDUPOBJ or CPYF -create(*yes)
to bring it back CPYF *Replace
Do you want to make a compacted save file?
then CRTSAVF and SavObj or SavLib (specify the savf)
to “bring it back RstObj or RstLib (specify the savf)
From your PC you could use FTP to get it from the 400
From the AS/400 you could use FTP to PUT it on your PC
You could get it in Navigator
You could transfer it using Receive from the Host on Client Access
Do you want to be able to use the files on your PC or just have a back-up copy?
The SAVF suggestion provides the back-up but must be restored to an AS/400 to be used.