I Imported An MP4 (H.264) Video Into Animate And Can't Export (Publish) It

Hello everyone. I have a question to ask. I imported an MP4 video to embed in timeline and can't export - publish it. I already know I can't. I know what kinds of video format does Animate supports, and one of them FLV video format. But my question is, does Adobe have any application to convert MP4 videos to FLV? Adobe has many applications and all are unbelievable and have many kinds of nice features. However, I can't install all them on my device because I have less disk space, so I had to ask here. Please assist me.