It sounds like you are working with a dataset, possibly related to life tables, where age groups are listed in one column and the number of survivors at that age are listed in the adjacent column.

Here's a breakdown of how your dataset might be structured based on your description:

1. Age column (Column A): Age starts at cell A4 with the value "0". This column likely contains increasing ages in the rows below.
2. Survivors column (Column B): The number of survivors corresponding to each age starts at cell B4 with the value "100,000". This column contains the number of survivors at each age listed in column A.

If you are performing calculations or analysis (e.g., life expectancy, survival rates, etc.), you'll want to reference these cells accordingly.

Is there a specific formula or calculation you'd like help with for this dataset?

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Here are 5 related questions:

1. What analysis are you trying to perform with this dataset?
2. Are there specific survival metrics you need to calculate?
3. Is there a need to plot the data (age vs. survivors)?
4. Do you have any missing values in the dataset that need attention?
5. Do you want to calculate life expectancy from the survivors' data?

Tip: Always ensure your dataset is clean and consistent before performing any calculations to avoid errors in the analysis.