.cshw file: how to open it on Windows

1 Windows app registers the .cshw extension. Install one of them to open the file with a double-click.

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  C Shell for Windows

  A native Windows command shell with csh/tcsh-flavored syntax, 248+ builtins, real concurrency primitives, arbitrary-precision math, and built-in AI.

  Proprietary 1.0.8.4

Related guide: Change the default app for a file type in Windows