QUESTION: Fix punctuation: 88008 is not just another number but serves to fix into the mind of the individual a route by which he can rehabilitate himself his ethics and his goals
ANS: 8-8008 is not just another number, but serves to fix into the mind of the individual a route by which he can rehabilitate himself, his ethics and his goals.

QUESTION: Fix punctuation: He then did some of his most important work on complex analysis
ANS: He then did some of his most important work on complex analysis.

QUESTION: Fix punctuation: If your PC opens the CPI file but its the wrong application youll need to change your Windows registry file association settings In other words Windows is associating CPI file extensions with the wrong software program
ANS: If your PC opens the CPI file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating CPI file extensions with the wrong software program.

QUESTION: Fix punctuation: Buried at Lin Cemetry Denmark
ANS:
Buried at Lina Cemetry, Denmark