It is possible to convert FLV files into AVI videos. FLV viles can usually be read on computers but you will have to convert these videos into AVI files if you want to watch these videos on other devices such as Smartphones, tablets, smart TVs or video game systems.Download a good FLV to AVI converter. There are a lot of converter programs to choose from but you should be able to find quality software after reading some reviews. Think about purchasing paying software if you have many files to convert or need high resolution videos.