5.62 version of the Rexx language. Macros can be arranged in the .kml file format. History XEDIT was written by IBM employee Xavier de Lamberterie and was first released in 1980. Its predecessor was EDIT SP (SP is an initialism for System Product used by IBM). Other key influences were EDIT, the older editor for CMS, and EDGAR, an IBM Program Product editor for CMS. XEDIT supported many of the EDGAR commands, SOS (Screen Output Simulation) being a major one. XEDIT also supported EXEC 2, the predecessor of Rexx. PC and Unix adaptations When PCs and Unix computers began to supplant IBM 3270 terminals, some users wanted text editors that resembled the XEDIT they were accustomed to. To fill this need, several developers provided similar programs: KEDIT KEDIT by Mansfield Software Group, Inc., was the first XEDIT clone. Although originally released in 1983, the first major release was version 3.53 for DOS, released in 1985. By 1990, KEDIT 4.0 had a version supporting OS/2, and included the ALL command. The last version for DOS and OS/2 was KEDIT 5.0p4. KeditW (for Windows) is at version 1.6.1 dated December 2012. Some earlier Windows versions were: Release being 1.5 service level 3, dated January 1998 Version 1.6, dated December 2007 KEDIT 1.6 supports syntax highlighting for various languages including C#, COBOL, FORTRAN, HTML, Java, Pascal, and xBase defined in the .kld file format. KEDIT supports a built-in Rexx-subset called KEXX. Mansfield Software created the first non-IBM implementation of Rexx (Personal Rexx) in 1985. In December 2012 Mansfield Software released 1.6.1 to provide compatibility with Windows 8 and extended support to at least June . These 32bit versions work also in the 64bit versions of Windows 7 and Vista, but do not directly support Unicode. As of December 2022, Kedit supports Windows 10 and 11 too, and Mansfield promises email support until at least June 2024. SEDIT SEDIT (first released in 1989) is another implementation on both Windows and Unix, which supports a variant of Rexx language called S/REXX (announced in 1994). THE (The Hessling Editor) The Hessling Editor (THE) is an open source text editor first released in , released under the GPL-2.0-or-later license, and available for many operating systems including QNX, OS/2, DOS, BeOS, Amiga, Windows 95/98/Me/NT/2000/XP and most or all POSIX Unix platforms (as a program for text-mode or native X11). THE is a derivation of the IBM Mainframe VM/CMS