.SYN

.SYN file extension

This is the basic program to work with .SYN extension

TextPad

TextPad Syntax Definition File

TextPad is a general purpose editor for plain text files. It provides a variety of additional features compared to Notepad such as a comprehensive toolbar, advanced search & replace, file comparison utility, macro recorder, and unlimited undo/redo. TextPad allows editing of HTML, C/C++, Java, and JavaScript codes, with syntax highlighting... (more)

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