I found out that lambda runtime do not consist 'tar' command. So as I can see there could be some works arount to untar file into /tmp/ folder. I tried
const tar = require("tar");
await new Promise((resolve, reject)=>{
tar.x(
{
file: '/tmp/ZippedData/backup.tgz',
cwd: '/tmp/ZippedData/'
}
).then(data=>{
console.log('UNPACK', data); // outputs undefined in AWS, but works on serverless offlinte
resolve(data)})
});