EnCalcOL is a Business software developed by JSutils. After our trial and test, the software is proved to be official, secure and free. Here is the official description for EnCalcOL:
Brothersoft Editor: EnCalcOL calculates how much heating oil is left based on depth readings. It also predicts how long the remaining oil will last. Designed to work with both rectangular and cylindrical tanks. The results can be saved to log files. There is a History log file to keep the results of regular readings and a results log file to store individual calculations and predictions.Requires a registration code (free for personal non commercial use). you can free download EnCalcOL 1.1 now.