What should be avoided when formatting data in spreadsheets?

When formatting data in spreadsheets, using varying units in the same data set should be avoided because it can lead to confusion and misinterpretation of the data. Consistency in units is crucial for analysis and comparison, as mixing different units, such as miles and kilometers or pounds and kilograms, can create errors in calculations and skew the results.

Maintaining a uniform measurement system allows for accurate data aggregation and analysis. If a dataset includes different measurements for similar types of data, it becomes challenging to draw meaningful conclusions, analyze trends, or even apply formulas correctly without first ensuring that all entries are in the same unit. This consistency is key because it promotes clarity and facilitates better communication and understanding of the data presented.