.SYN

.SYN file extension

This is the basic program to work with .SYN extension

TextPad

TextPad Syntax Definition File

Given the clear limitations of Windows’ default text editor (Notepad), many users working with text files, such as programmers, may find TextPad to be the simple yet comprehensive utility they need. This TXT editor comes with all the features present in Notepad and then more – file comparison, keystroke macros, a tabbed interface for simultaneous files, and configurable syntax highlighting... (more)

The program works with the following extensions: nfo, dat, php, ini, log, htm, html, c, h, pl, sh, rb, pod, inf, ddl, jav, sql, asm, tcl, glo, cpp, syn, inc, bak, pas, tpw, cfm, conf, java and 132

.SYN extension is also supported by the following programs:

JCreator Pro

JCreator Pro JCreator.syn

It is faster, more efficient and more reliable than other Java IDE’s.
SimSynth

SimSynth SimSynth Document

SIMSYNTH produces rich strings with surrounded brass and deep basses.
LSMC

LSMC Syndicate File

Lottery Syndicate Manager App, reduce your workload, and saves time. (UK only).