Add spaces: Tip:IncorrectXEFfileassociationerrorscanbeasymptomofotherunderlyingissueswithinyourWindowsoperatingsystem.

Answer: Tip: Incorrect XEF file association errors can be a symptom of other underlying issues within your Windows operating system.

Add spaces: IntheWest,peoplehaveinvestedsuccessfullyinrealproperty.

Answer: In the West, people have invested successfully in real property.

Add spaces: Thereisnocombustion,it'ssafe,therawmaterialiseverywhere,it'sfreeanditwon'trunoutduringtheexistenceofman.

Answer:
There is no combustion, it's safe, the raw material is everywhere, it's free and it won't run out during the existence of man.