StripRichTextFormat function removes rtf markup from string and returns new string.
Rtf text
{\rtf1\ansi\deff0\sdeasyworship2
{\fonttbl{\f0 Tahoma;}}
{\colortbl ;}
{\pard\sdlistlevel0\qc\qdef\sdewparatemplatestyle101{\*\sdasfactor 1}{\*\sdasbaseline 72.9}\sdastextstyle101\plain\sdewtemplatestyle101\fs146{\*\sdfsreal 72.9}{\*\sdfsdef 72.9}\sdfsauto hello\par}
{\pard\sdslidemarker\sdlistlevel0\qc\qdef\sdewparatemplatestyle101\plain\sdewtemplatestyle101\fs146{\*\sdfsreal 72.9}{\*\sdfsdef 72.9}\sdfsauto\par}
{\pard\sdlistlevel0\qc\qdef\sdewparatemplatestyle101\plain\sdewtemplatestyle101\fs146{\*\sdfsreal 72.9}{\*\sdfsdef 72.9}\sdfsauto hello\par}
}
becomes
hello
hello
code
package main
import (
"io/ioutil"
"os"
"github.com/J45k4/rtf"
)
func main() {
b, _ := ioutil.ReadFile("rtftext.rtf")
f, _ := os.Create("text.txt")
f.WriteString(rtf.StripRichTextFormat(string(b)))
}