Can EZNEC v. 5.0 use the antenna description files I created with an earlier version?
Absolutely! EZNEC v. 5.0 can even read and translate DOS EZNEC (.EZ) and ELNEC (.EN) files — just include the extension (.EN) when specifying the name of an ELNEC file to open. Older versions of EZNEC can also read and use files written by EZNEC v. 5.0, although new objects not existing in the older versions will be ignored. EZNEC v. 5.0 uses the same plot file format as EZNEC v. 2.0 through 4.0, and can display plots saved by ELNEC or any version of EZNEC.