How do I embed a video file in Impress presentation

Hi, I have been trying to embed a video file but keep getting the error “format not supported” no matter what format I try.
I am using windows 10 LO
I have tried .mp4 .mov, .avi, .ogg and I get the same error everytime?


Can this help? Are the videos running outside LO? Do you have installed codecs? Do you search for any questions with “embed video” here?

Afraid, not that is the procedure I have been following always but just get the error “THe format of the selected file is not supported”

What is a codec? and where do I get them?

See there the answer from @arindam.