Step 1: Recall what a spreadsheet is.
An electronic spreadsheet (like Microsoft Excel or Google Sheets) is a grid-based tool used to organise, calculate, and display data in rows and columns.
Step 2: Understand what makes content "look neat and easy to read".
When data is presented visually in a clean, clear style, it becomes easier to scan and interpret. This involves changing fonts, colours, borders, cell shading, and number formats.
Step 3: Eliminate the wrong options one by one.
Alignment only controls where text sits inside a single cell (left, centre, or right) - a small part of appearance. Sorting rearranges the order of data rows but does not change how anything looks visually. Filtering hides certain rows to narrow down a dataset and has nothing to do with visual appearance.
Step 4: Zero in on Formatting.
Formatting covers the full range of visual presentation tools - font size, bold or italic text, cell background colours, borders, and number display formats. All of these together make a sheet look neat and professional.
Step 5: Connect the definition to the question.
The question asks which feature helps content "look neat and easy to read." Since Formatting encompasses every visual property of a cell or sheet, it is the most complete and accurate answer.
Step 6: State the conclusion.
Among all four options, only Formatting addresses the overall visual presentation of a spreadsheet in a comprehensive way.
\[ \boxed{ \text{(D) Formatting} } \]