Is there local file manipulation that\'s been done with JavaScript? I\'m looking for a solution that can be accomplished with no install footprint like requiring Adobe AIR.<
There is a (commercial) product, "localFS" which can be used to read and write entire file-system on client computer.
Small Windows app must be installed and tiny .js file included in your page.
As a security feature, file-system access can be limited to one folder and protected with a secret-key.
https://www.fathsoft.com/localfs