题目内容：

In order to facilitate everyone through the mail to send large files,IT Dep.bought a compression software that can be used effectively compressed file size.
Please inform at a convenient time for you to install on me,Thanks!
请大侠帮忙修改其中的错误,如果没有错误更好哈!Thanks!..
还有没有回答来对比一下，谢谢所有给出回答的朋友