In spreadsheet software, how are columns and rows typically represented?

5. In spreadsheet software, columns are typically represented by letters. For example, column A, column B, etc.

The correct option is C.

• A. Numbers: Numbers represent rows.
• B. Symbols: Symbols are not used to represent columns.
• C. Letters: Columns are identified by letters (A, B, C, ...).
• D. Colours: Colours can be used for formatting, but not for representing columns themselves.

The final answer is $\boxed{\text{C}}$

6. In spreadsheet software, rows are typically represented by numbers. For example, row 1, row 2, etc.

The correct option is B.

• A. Letters: Letters represent columns.
• B. Numbers: Rows are identified by numbers (1, 2, 3, ...).
• C. Symbols: Symbols are not used to represent rows.
• D. Shapes: Shapes are not used to represent rows.

The final answer is $\boxed{\text{B}}$