func (f *File) Offset() int64 {
	return f.offset
}
Data for this file begins this far into the torrent.
package torrent
import (
	"strings"
	"github.com/anacrolix/torrent/metainfo"
)
type File struct {
	t      *Torrent
	path   string
	offset int64
	length int64
	fi     metainfo.FileInfo
}
func (f *File) Torrent() *Torrent {
	return f.t
}