QUESTION: Fix punctuation: Work is way too big a part of our lives to plod through day after day
ANS: Work is way too big a part of our lives to plod through day after day.
QUES: This was a extremely difficult calculation since M127 is a big number and S127 is unbelievably large

correct the punctuation.

CORRECTED: This was a extremely difficult calculation since M127 is a big number and S127 is unbelievably large.
Question: If your PC opens the DVDPROJ file but its the wrong application youll need to change your Windows registry file association settings In other words Windows is associating DVDPROJ file extensions with the wrong software program
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Answer: If your PC opens the DVDPROJ file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating DVDPROJ file extensions with the wrong software program.
About X142 Long Style Green Series Freshwater Pearl and Turquoise Necklace Can also be bracelet

Can you repeat this sentence, but add in punctuation?
About X142 : Long Style Green Series Freshwater Pearl and Turquoise Necklace ( Can also be bracelet )
input: Note if there is more than one sponsor add the others in the comment
fixed: Note: if there is more than one sponsor, add the others in the comment.
The Debian project has been offered a booth in the associations village which is traditionally the yearly gathering of GNULinux and Free Software users developers and business communities in France

Can you repeat this sentence, but add in punctuation?
The Debian project has been offered a booth in the associations village which is traditionally the yearly gathering of GNU/Linux and Free Software users, developers (and business) communities in France.