Have you got FLV video file and want to upload on youtube? But the problem you will face is FLV video format is not supported for uploading at youtube.
The simplest way is just convert your FLV video file to avi video file. You can convert it by a free FLV to AVI convertor. This free converter software you can download from softonic .The size is just around 4 MB. It will take hardly one or two minute to download the software and convert your FLV file to avi format. After converting, you can easily upload you avi formatted video file on youtube without any trouble.
Quality of converted file will be as good as original file.