Menu Bar:
The menu bar is just below the title bar which comprises of various menus consisting of various options.

File:
The File menu contains the commands of all file management tasks like, Create a new file, Open an existing file, Close the current file, Save a file, Save As another file, print file, Export file etc.,
Edit:
The Edit menu contains the editing commands like, cut, copy, paste, Undo, Redo etc.,
View:
The View menu contains the commands which are used to modify the environment of write like display of toolbars, web layout, print layout, navigator etc.,
Insert:
The Insert menu contains commands for inserting various elements such as pictures, tables, charts, comments, headers, footers, special characters, cross reference etc.,
Format:
The Format menu contains the commands of various text and page formatting features like page size, layout, font characteristics, bullets and numbering etc.,
Tables:
The Table menu contains various tools to manage and manipulate tables such as create tajfie, insert rows, insert columns, s’plit cells, merge cells etc.,
Tools:
The Tools menu contains various tools and functions such as spell check, macros, mail merge, end notes/footnotes etc.,
Window:
The window menu shows display options such as New Window, Close Windows, Split and Freeze. .
Help:
The Help menu lists out the inbuilt help features available with OpenOffice.