install-ssconvert

The R package gnumeric requires an external program, ssconvert (normally installed as part of the spreadsheet application gnumeric) in PATH.

Installing ssconvert on MS Windows

The last release of the gnumeric application for windows is 1.12.17 from 2014.

The page https://www.cyberithub.com/how-to-install-gnumeric-ssconvert-on-windows-10-using-2-methods/ suggests

Either

Or

Installing ssconvert on OS X

Both https://command-not-found.com/ssconvert and https://formulae.brew.sh/formula/gnumeric suggest

Installing ssconvert on Linux

Use the systems package manager to install the package gnumeric (On Fedora: gnumeric-1).

See https://command-not-found.com/ssconvert