Explain Collapsing?

1.	Explain Collapsing?
Answer» Hiding an additional level of DIRECTORIES beneath the selected DIRECTORY in My COMPUTER or WINDOWS Explorer. Hiding an additional level of directories beneath the selected directory in My Computer or Windows Explorer.

Answer»

Hiding an additional level of DIRECTORIES beneath the selected DIRECTORY in My COMPUTER or WINDOWS Explorer.

Hiding an additional level of directories beneath the selected directory in My Computer or Windows Explorer.

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