How to get the Blob of the inner file?

[microkof]

After reading the readme.md, I don't understand how to get the Blob of the inner file yet.
Too ashamed.
Question 1: To need dataview-extra.js and reader.js or not?
Question 2: Please extend the following code, teach me how to get the Blob, thank you!!

var archive = RarArchive(file, function(err) {
if(err) {
return;
}
// Use archive
});

[matortheeternal]

I know I'm like almost a year late, but I'm just looking into this repository and I figured I'd address this issue for others's benefit.

Question 1: No.
Question 2: This function allows you to input a RAR archive File, an entry from that archive, and a callback function to call with the extracted file.

function getRarEntryFile(file, entry, callback) {
    RarArchive({type: RarArchive.OPEN_FILE, file: file}, function() {
        this.get(entry, function (error, blob) {
            if (blob) {
                callback(new File([blob], entry.name));
            } else {
                console.log('getRarEntryFile Error: ' + error);
            }
        });
    });
};