Do you have examples to use on the software?
Yes, there is always test files included with the software, the files are in 2 different unit of measurements that the software uses.
In general to load a test file please do the following:
1- In the main screen set the measurement units first
2- Select "Open" from the main screen file menu
3- Click on the "open file" button located at Save function frame
4- You can select either the SI units test file or the US English units file
5- Click the "open" button again
You must go through the steps accordingly and click all the "Calculate buttons in order.