this AVI file format not supported什么意思?

this AVI file format not supported什么意思? This file format is not supported by the File Preview是什么意思? unknown file format! This email format is invalid 播放AVI文件时总是显示fy first element in file is not ebml, this->file = file; 什么意思 this movie format is not supported是什么意思 this vidao format ia not supported This file will be available This file does not exist . Can not play this file this file has been damage primer Premier 5 如何打开多序列比对文件?我从File-Open-Alignment进入提示要*.aln文件但我用ClustalW算的aln文件总是导不进去提示为：This file does not appear to be in Primer Premier alignment format. Please base on attached file format,submit the quotation麻烦帮我翻译, avi下载 really want to make this world a format you will have to creat partitions and format this drive 请问 do you want to format this diskette是什么意思?