Number Formats in Spreadsheets

Natalie Webb
Jul 31, 2026
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About this webinar

Learn how to format numbers and dates in Excel and Google Sheets.

About the speaker

Natalie Webb isn’t your average genealogist. With a 25-year career as a project manager, technical trainer, and all-around computer wizard, she's got the skills to tackle even the trickiest of technic...
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Key points and insights

Unlocking the full potential of historical data requires organize-and-sort capabilities that only well-structured spreadsheets can provide. In genealogical research, standardized date formats are essential for chronological ordering, preventing cross-cultural confusion between regional date conventions, and ensuring clean data integration across family tree software. This practical session demystifies how spreadsheets treat numbers and dates, providing step-by-step guidance on transforming chaotic timeline entries into clean, uniformly formatted columns across both Microsoft Excel and Google Sheets.

  • Understanding Number Classification: Spreadsheets treat numerical inputs differently depending on their intended function, distinguishing traditional arithmetic values from identifiers like Social Security numbers, addresses, and customizable dates.
  • Streamlined Batch Formatting in Excel: Genealogists can standardize an entire column of mixed dates at once in Microsoft Excel by selecting the column and utilizing the "Format Cells" dialog under the Home tab to enforce a single date structure.
  • Customizing Dates in Google Sheets: Google Sheets offers a similar, flexible approach to unifying timeline data by navigating through the "Format" menu to "Number" and applying tailored options under "Custom date and time."

To see these step-by-step spreadsheet transformations in action and master your genealogical data organization, viewers are highly encouraged to watch the full webinar session.


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