I want to remodify the UI of accounts editview, detailview, listview and also modules menu should display at left panel. How to do that and where i can modify the files?
(you can upload attachments at pasteboard.co or pastebin.com)
You can go In Admin / Studio and change the layouts.
If you need further customization, you might need to do code changes by overriding the Display method in the View classes. There is a Developer Guide that explains some of this.
For the menus, you can also customized them from Admin menu, or for code changes look at this file:
https://github.com/salesagility/SuiteCRM/blob/master/themes/SuiteP/tpls/_headerModuleList.tpl