Text: what is file extension fpi?

Correct capitalization: What is File Extension FPI?

Text: no matter "where we are," we can now address the class' bleed by writing:

Correct capitalization: No matter "where we are," we can now address the class' bleed by writing:

Text: - power swing meets the following requirements for door widths and weights:

Correct capitalization: - Power Swing meets the following requirements for door widths and weights:

Text: it is an easy calculation for us, namely 3361.

Correct capitalization:
It is an easy calculation for us, namely 3361.