Add punctuation: The video bank on YouTube contains our entire collection of filmed material from complete product films to company presentations
A: The video bank on YouTube contains our entire collection of filmed material, from complete product films to company presentations.

Add punctuation: The restuarant Hjen is open exstra in the evening
A: The restuarant "Hjen" is open exstra in the evening.

Add punctuation: In addition resistance regulates automatically according to power of stroke the stronger you pull the stronger gets the resistance
A:
In addition, resistance regulates automatically according to power of stroke: the stronger you pull, the stronger gets the resistance.