how to block the cells that is uneditable

[basha29565]

I observed some XL sheets that the data which is fed into the sheets are cannot be edited and even all the options of menus and tools of toolbars are deactivated. only I can able to feed and save the data. How this is can b made ? And how to insert controls like checkbox, dropdown list, radio buttons in XL cells of sheets. plz guide.

[zmbd]

not enough information as to how the data is being entered, version of Excel, etc...