First up, you will need to download the software tool Microsoft Reader.
Now, you need to install the same by double clicking on the downloaded file to install the Microsoft Reader and then just select the path for storing this software application tool and just follow the instructions which will be coming on screen.
Now, after successfully installing the Microsoft Reader, just double-click on the .lit extension file and there you go, you will be successfully able to view all the .lit file formats right on your screen as mentioned above, you can also convert the .lit file formats to your desired extension.
