Most professionals customarily make use of construction estimating programs such as ProEst, Buildertrend or CoConstruct. Those tools are used to estimate expenses, generate material bills and measure labor time. They are also capable of creating extensive reports and real time price adjustments. Smaller jobs are often still done on Excel spreadsheet by some estimators. Digital devices increase precision and save time, most especially in complicated projects. Software usually contains databases containing updated prices of materials which are useful in ensuring that the estimate is real and up-to-date.