| Access is Denied - Troubleshooting |
| Access is Denied Task Pane Error |
| Access Web Apps |
| Action - ExecuteFunction |
| Action - ShowTaskPane |
| Action - SupportsPinning |
| Actions - Commands |
| Activation Rules |
| ActivationRules |
| ActiveView - Requirement Set |
| ADAL JS Library |
| Adaptive Card Designer |
| Adaptive Cards - Outlook |
| addClass |
| addEventListener |
| addFromNamedItemAsync |
| addFromPromptAsync |
| addFromSelectionAsync |
| addHandlerAsync |
| addHandlerAsync - binding. |
| addHandlerAsync - customXmlPart. |
| addHandlerAsync - document. |
| addHandlerAsync - settings. |
| Add-in Commands |
| Add-in Component - HTML File |
| Add-in Component - Manifest |
| Add-in Custom Functions |
| Add-in Dialog |
| Add-in HTML File |
| Add-in Isolation |
| Add-in Manifest |
| Add-in Types - Command |
| Add-in Types - Content |
| Add-in Types - Custom Functions |
| Add-in Types - Excel |
| Add-in Types - Mail |
| Add-in Types - Outlook |
| Add-in Types - PowerPoint |
| Add-in Types - Task Pane |
| Add-in Types - Word |
| Add-in UI |
| Add-in UX |
| Add-in Validator |
| Add-ins |
| Add-ins - Migrating |
| Add-ins - Side Loading |
| addNamespaceAsync |
| AJAX |
| alert Function |
| Alert Panel - Notifications |
| AllowSnapshot |
| And Operator |
| Angular |
| Angular - Validators |
| Angular.js |
| Angular2 |
| Angular2 - Yeoman |
| Anonymous Functions |
| Anonymous Functions - Self-Executing |
| Anonymous Self Executing Function |
| API - ActiveView |
| API - AddinCommands |
| API - AttachmentDetails |
| API - BindingEvents |
| API - Common / Shared |
| API - CompressedFile |
| API - CustomXmlParts |
| API - Dialog |
| API - DialogAPI |
| API - Document |
| API - DocumentEvents |
| API - Error |
| API - Excel |
| API - File |
| API - HtmlCoercion |
| API - Identity |
| API - ImageCoercion |
| API - Mailbox |
| API - MatrixBinding |
| API - MatrixBindings |
| API - MatrixCoercion |
| API - OneNote |
| API - OOXML |
| API - OoxmlCoercion |
| API - Outlook |