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Convert fixed-width local date and time text

Fill B2:B5 with a numeric Excel timestamp for exact YYYY-MM-DD HH:MM text from years 2000 through 2099. Preserve blank inputs as blank text. Return Review for every malformed, invalid or out-of-range input. Interpret the text as a local clock reading with no timezone conversion.

The answer cells begin blank. Enter a reusable formula and check it against the published practice datasets. Hints and the solution are available when you choose them.

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A checkpoint records a fresh check of every dataset. This attempt tracks built-in hints, solutions, steps and worked examples; it does not establish independent authorship.

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A LITTLE PRACTICE

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Fill B2:B5 with a numeric Excel timestamp for exact YYYY-MM-DD HH:MM text from years 2000 through 2099. Preserve blank inputs as blank text. Return Review for every malformed, invalid or out-of-range input. Interpret the text as a local clock reading with no timezone conversion.

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