_$ (apply 'append '(("Fax") ("HP LaserJet MFP M725 PCL 6") ("Microsoft Print to PDF") ("Microsoft XPS Document Writer") ("NEZH-HP725-02 (HP LaserJet MFP M725)")))
("Fax" "HP LaserJet MFP M725 PCL 6" "Microsoft Print to PDF" "Microsoft XPS Document Writer" "NEZH-HP725-02 (HP LaserJet MFP M725)")
I would strongly advise against assigning each element of a list to a separate variable in favour of manipulating the list using the wealth of list functions available in AutoLISP, but if you really must:
_$ (setq l (apply 'append '(("Fax?") ("HP LaserJet MFP M725 PCL 6") ("Microsoft Print to PDF") ("Microsoft XPS Document Writer") ("NEZH-HP725-02 (HP LaserJet MFP M725)"))))
("Fax?" "HP LaserJet MFP M725 PCL 6" "Microsoft Print to PDF" "Microsoft XPS Document Writer" "NEZH-HP725-02 (HP LaserJet MFP M725)")
_$ (setq s "a")
"a"
_$ (foreach x l (set (read s) x) (setq s (strcat s "a")))
"aaaaaa"
_$ a
"Fax?"
_$ aa
"HP LaserJet MFP M725 PCL 6"
_$ aaa
"Microsoft Print to PDF"
_$ aaaa
"Microsoft XPS Document Writer"
_$ aaaaa
"NEZH-HP725-02 (HP LaserJet MFP M725)"