Creating data tables in a spreadsheet
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If you inherit data in a spreadsheet, you may have to re-structure the data to make it usable and/or consistent
Careful design of your own spreadsheets will make then easily usable and portable to other systems
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Re-formatting a spreadsheet report
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Formatting problems
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Avoid using multiple tables within one spreadsheet.
Avoid spreading data across multiple tabs (but do use a new tab to record data cleaning or manipulations).
Record zeros as zeros.
Use an appropriate null value to record missing data.
Don’t use formatting to convey information or to make your spreadsheet look pretty.
Place comments in a separate column.
Record units in column headers.
Include only one piece of information in a cell.
Avoid spaces, numbers and special characters in column headers.
Avoid special characters in your data.
Record metadata in a separate plain text file.
Metadata is essential to the understanding of the data.
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Dates and date formatting
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Internally dates are stored as numbers
Some dates may be mis-interpreted by the spreadsheet program
Splitting dates into components can make life easier
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Quality control
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In general you can type any kind of data into any cell in a spreadsheet
Excel does provide tools which allow you to restrict the type of data and ranges of values you can enter
Using Excel tables can make data entry simpler, by automatically inserting new rows complete with data validation rules when needed
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Exporting data
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