the geodetic operation for which we are chiefly indebted to him and of which he bore the greatest share is the most perfect and extensive which has been executed in any country

Can you repeat this sentence, but add in punctuation?
... the geodetic operation, for which we are chiefly indebted to him, and of which he bore the greatest share, is the most perfect and extensive which has been executed in any country.
If left untreated the endometriosis will in some cases spread to other tissues the cysts will get bigger and the symptoms will be worsened

Can you repeat this sentence, but add in punctuation?
If left untreated, the endometriosis will in some cases spread to other tissues, the cysts will get bigger and the symptoms will be worsened.
In the case that your MAPF file doesnt open it is highly likely that you do not have the correct software application installed on your PC to view or edit MAPF file extensions

Can you repeat this sentence, but add in punctuation?
In the case that your MAPF file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit MAPF file extensions.