Professional writing involves the use of clear language to convey information in a way that is easily understood by the intended audience. Individuals who can use language well may be employed as full-time professional writers in a variety of communications-related occupations, such as wikipedia.org

Analysis of data is a process of inspecting, cleaning, transforming, and modeling data with the goal of highlighting useful information, suggesting conclusions, and supporting decision making. wikipedia.org

A sale is the act of selling a product or service in return for money or other compensation. It is an act of completion of a commercial activity. wikipedia.org

Content strategy refers to the planning, development, and management of content, written or in other media. wikipedia.org

A subset of the field of commerce, business development comprises a number of techniques and responsibilities which aim at: wikipedia.org

Customer service is the provision of service to customers before, during and after a purchase. 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

Process improvement is a series of actions taken by a process owner to identify, analyze and improve existing business processes within an organization to meet new goals and objectives. wikipedia.org

A spreadsheet is a computer application with tools that increase the user's productivity in capturing, analyzing, and sharing tabular data sets. It displays multiple cells usually in a two-dimensional matrix or grid consisting of rows and columns (in other words, a table, hence "tabular"). wikipedia.org