.csig file: how to open it on Windows

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

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  Autofirma

  Simple desktop application for users without knowledge of electronic signatures. Automatically selects the most suitable signature format for the document to be signed and allows viewing the signers and signed document if a signature is provided.

  Open source 1.9 ★ 344

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