Split Range Of Numbers From One Cell Into Column Of Multiple Cells All With Individual Numbers

I have a mass of data which look something like this:

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and I require the ranges of reference numbers to be listed in a column one above the other, which requires inserting new rows. I also need the date & description columns copied down into the newly inserted rows.

So basically for example I would want the top row to now read:

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and then apply the same procedure to the other ranges below this.