A word is a speech sound or a mixture of sounds, or its written representation, that symbolises and communicates a meaning. It can be made up of a single morpheme or a group of morphemes.

Microsoft Excel is a spreadsheet programme that is part of the Office suite of business software. Users can arrange, organise, and calculate data in a spreadsheet using Microsoft Excel.

A PowerPoint slideshow (PPT) is a presentation made with Microsoft software that allows users to include audio, visual, and audio/visual elements. It's a multimedia technology that also serves as a collaboration and content-sharing tool.

Visual Basic for Applications is a Microsoft-developed and-owned programming language.
You can use VBA to construct macros to automate repetitive word and data processing tasks, as well as to create custom forms, graphs, and reports.
VBA is a component of Microsoft Office; it is not a standalone product.

When you create a Microsoft account to use services like Outlook.com or Xbox, you gain access to OneDrive, an online personal storage service.
Save documents, photographs, and other things in the cloud, share them with others, and collaborate on content using OneDrive.
