Example
function createGoogleDriveFileWithBlob() {
var blob,character,data,fileName,i,L,max,min,newFile,randomNmbr;//Declare variable names
fileName = "Test Blob " + new Date().toString().slice(0,15);//Create a new file name with date on end
L = 500;//Define how many times to loop
data = "";
max = 126;
min = 55;
for (i=0;i<L;i+=1) {//Loop to create data
randomNmbr = Math.floor(Math.random()*(max-min+1)+min);//Create a random number
//Logger.log('randomNmbr: ' + randomNmbr);
character = String.fromCharCode(randomNmbr);
//Logger.log('character: ' + character);//Print the character to the Logs
data = data + character;
};
blob = Utilities.newBlob(data, MimeType.PLAIN_TEXT, fileName);//Create a blob with random characters
newFile = DriveApp.createFile(blob);//Create a new file from a blob
newFile.setName(fileName);//Set the file name of the new file
};