What To KnowTo save your story: Select the More menu (three dots on lower right), and choose Save > Save Story.Saving another person's video file isn't possible but you can use can bookmark them to come back to later.Your best bet for a high-quality version of another user's video is to reach out to them directly and ask for one.
This article explains how to download a video from Instagram.What Is Instagram and Why Should You Be Using It?
How to Save Your Instagram Stories
Downloading and storing stories or videos you previously uploaded or created on Instagram can be done by taking the following steps.
Open the Instagram app.
Open the story you'd like to save.
Select More, the three dots located in the lower-right corner.
Choose Save Story.
To save the photo without the text or effects you added to it, tap Save Photo.
Saving Another User's Instagram Videos
If you've ever tried to save another user's video or story, you know that there's no clear way to do it. This is because Instagram doesn't actually own the videos and so can't guarantee that it's OK to do so.
The best solution for a high-quality digital version of someone else's video you see on Instagram is to simply ask them for a copy.
If, on the other hand, you simply don't want to lose access to the video because you enjoy it, or you want to come back later to watch it again (and again?), you can simply bookmark it. See our How to Save Instagram Photos tutorial for help doing this. Yes, it's the same process for videos and images!