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LM5145: differences between "LM5145DESIGN-CALC" and "LM5145 Inverting Buck-Boost Quickstart Calculator"

Part Number: LM5145
Other Parts Discussed in Thread: , LM25145, LM5146

Hi,

On the LM5145 product page both tools are listed. The Excel sheet looks similar, same input boxes. But when filling the sheets with the same requirements and values, I get large differences in resulting required input- and outputs-capacitors, permitted ESR, output capacitor ripple current and efficiency. 

What is the difference between both tools?

And why does the LM5145 product page list both tools, but the LM5145-Q1 page only the first tool?

Thanks,
  Robert