Data mining is the process of discovering new patterns from large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics and database systems. wikipedia.org

Microsoft Excel is a proprietary commercial spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. wikipedia.org

Data scraping is a technique in which a computer program extracts data from human-readable output coming from another program. wikipedia.org

Real estate appraisal is the process of valuing real property. The value usually sought is the property's Market Value. Appraisals are needed because compared to, say, corporate stock, real estate transactions occur very infrequently. wikipedia.org

A property tax is a levy on the value of property that the owner is required to pay. The tax is levied by the governing authority of the jurisdiction in which the property is located; it may be paid to a national government, a federated state, a county/region, or a municipality. wikipedia.org

Office administration is a set of day-to-day activities related to financial planning, billing and recordkeeping, personnel, and physical distribution and logistics, within an organization. wikipedia.org