Add punctuation: The fastest and easiest way to open your HBX file is to doubleclick it
A: The fastest and easiest way to open your HBX file is to double-click it.

Add punctuation: It is possible to create up to 30 schedules according to attributes which will be trained and according to training length
A: It is possible to create up to 30 schedules according to attributes which will be trained and according to training length.

Add punctuation: But should the need arise this test rod is easily replaced
A:
But should the need arise, this test rod is easily replaced