Studio 5000 .L5K Export/Import to clean up code

Curious if anybody has any documentation or input on what this exactly does
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Many times when I have a problem it is one of the first things tech support recommends.
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It's almost like asking "did you cycle the power"
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They all have a bit different take on what it does & have no reference documents to back it up
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It takes the Binary .ACD & converts to XML
then converts the XML back to Binary .ACD?
Which I could always dissect & compare, looking for an easier answer
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It usually makes the file a bit smaller
But it does not tell what it stripped out or modified
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Tech support says it cleans up AOP's & Modules issues,
But what does it reference to clean it up?
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Any insight would be appreciated
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Thanks!!!

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The process corrects corrupted sections of the file. It is a recompile of the code by Studio 5000. Error checking is part of this process. There is no documentation that I can find. If you want to find what was changed I would create a new L5k from the recompiled project. Then open both the original L5K and the new in Notepad plus and compare them.

I would imagine many in this forum know about the utility I will mention, but I mention it as it may be better than notepad++ for comparisons. There is a freeware called Winmerge which is very useful for comparison of text files.
https://winmerge.org/?lang=en

Always use Notepad++
Will try WinMerge
Thanks!!