I've installed RSTUDIO on the another machine with another Windows version and cannot see encoding which I used on the previous computer (CP1251). When opening "Reopen with encoding" I don't see CP1251. How can I add it to R or Windows maybe?

CodePudding user response：

On the Tools > Global Options... > Code > Saving tab check Show all encodings

And they will all show up. OK and that's it.