Excel can be used in variety of ways at construction sites and offices . The applications can be as simple as creating tables for various uses at site such as :
Cement register ,
Stock registers ,
Bar bending schedules ,
Material reconciliation statements , ,
Or this can be used to have specially created applications for Estimation , costing , budgeting etc.
The competence of operating Excel shall certainly improve your employability as well as the face value .An engineer who has a good command over the Excel application shall certainly be in a position to demand higher salary.
An engineer who has got good working knowledge of Excel shall also be able to improve his own performance level and as a result can receive better placement and higher posts.
I thought you shall immensely benefit if you read these two articles on Excel :