Add punctuation: Convert approx 15 minutes of video or audio to the MP3 format in less than 1 minute
A: Convert approx 15 minutes of video or audio to the MP3 format in less than 1 minute.

Add punctuation: It is powerful repair software which successfully repairs content from severely damaged Microsoft Word Docx file
A: It is powerful repair software, which successfully repairs content from severely damaged Microsoft Word Docx file.

Add punctuation: In the late 60s the skull was examined by the HewlettPackard technology company in their laboratory where they test crystals for their computers
A:
In the late 60s, the skull was examined by the Hewlett-Packard technology company in their laboratory where they test crystals for their computers.