diff --git a/types/office-js-preview/index.d.ts b/types/office-js-preview/index.d.ts
index 7e677c7ed4..dec070dad5 100644
--- a/types/office-js-preview/index.d.ts
+++ b/types/office-js-preview/index.d.ts
@@ -3571,8 +3571,8 @@ declare namespace Office {
          *                  This is returned in the data structure or format you specified with the coercionType parameter. 
          *                  (See Remarks for more information about data coercion.)
          */
-        getSelectedDataAsync<T>(coerciontype: Office.CoercionType, options?: GetSelectedDataOptions, callback?: (result: AsyncResult<T>) => void): void;
-        getSelectedDataAsync<T>(coerciontype: Office.CoercionType, callback?: (result: AsyncResult<T>) => void): void;
+        getSelectedDataAsync<T>(coercionType: Office.CoercionType, options?: GetSelectedDataOptions, callback?: (result: AsyncResult<T>) => void): void;
+        getSelectedDataAsync<T>(coercionType: Office.CoercionType, callback?: (result: AsyncResult<T>) => void): void;
         /**
          * Goes to the specified object or location in the document.
          *
@@ -8764,7 +8764,7 @@ declare namespace Office {
          * 
          * In addition to this signature, this method also has the following signature:
          * 
-         * `getAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;`
+         * `getAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;`
          * 
          * @param coercionType The format for the returned body.
          * @param options Optional. An object literal that contains one or more of the following properties:
@@ -8772,7 +8772,7 @@ declare namespace Office {
          * @param callback Optional. When the method completes, the function passed in the callback parameter is called with a single parameter of type AsyncResult. 
          *                  The body is provided in the requested format in the asyncResult.value property.
          */
-        getAsync(coerciontype: Office.CoercionType, options?: Office.AsyncContextOptions, callback?: (result: AsyncResult<string>) => void): void;
+        getAsync(coercionType: Office.CoercionType, options?: Office.AsyncContextOptions, callback?: (result: AsyncResult<string>) => void): void;
         /**
          * Returns the current body in a specified format.
          *
@@ -8793,7 +8793,7 @@ declare namespace Office {
          * @param callback Optional. When the method completes, the function passed in the callback parameter is called with a single parameter of type Office.AsyncResult.
          *                  The body is provided in the requested format in the asyncResult.value property.
          */
-        getAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
+        getAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
 
         /**
          * Gets a value that indicates whether the content is in HTML or text format.
@@ -10276,7 +10276,7 @@ declare namespace Office {
          *        asyncContext: Developers can provide any object they wish to access in the callback method.
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of type AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
          /**
          * Asynchronously returns selected data from the subject or body of a message.
          *
@@ -10302,7 +10302,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
         /**
          * Asynchronously loads custom properties for this add-in on the selected item.
          *
@@ -12207,7 +12207,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Asynchronously returns selected data from the subject or body of a message.
          *
@@ -12235,7 +12235,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Removes an attachment from a message or appointment.
          *
@@ -13679,7 +13679,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Asynchronously returns selected data from the subject or body of a message.
          *
@@ -13707,7 +13707,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Asynchronously loads custom properties for this add-in on the selected item.
          *
diff --git a/types/office-js/index.d.ts b/types/office-js/index.d.ts
index 200008fda5..6468bbfffa 100644
--- a/types/office-js/index.d.ts
+++ b/types/office-js/index.d.ts
@@ -3571,8 +3571,8 @@ declare namespace Office {
          *                  This is returned in the data structure or format you specified with the coercionType parameter. 
          *                  (See Remarks for more information about data coercion.)
          */
-        getSelectedDataAsync<T>(coerciontype: Office.CoercionType, options?: GetSelectedDataOptions, callback?: (result: AsyncResult<T>) => void): void;
-        getSelectedDataAsync<T>(coerciontype: Office.CoercionType, callback?: (result: AsyncResult<T>) => void): void;
+        getSelectedDataAsync<T>(coercionType: Office.CoercionType, options?: GetSelectedDataOptions, callback?: (result: AsyncResult<T>) => void): void;
+        getSelectedDataAsync<T>(coercionType: Office.CoercionType, callback?: (result: AsyncResult<T>) => void): void;
         /**
          * Goes to the specified object or location in the document.
          *
@@ -8764,7 +8764,7 @@ declare namespace Office {
          * 
          * In addition to this signature, this method also has the following signature:
          * 
-         * `getAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;`
+         * `getAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;`
          * 
          * @param coercionType The format for the returned body.
          * @param options Optional. An object literal that contains one or more of the following properties:
@@ -8772,8 +8772,7 @@ declare namespace Office {
          * @param callback Optional. When the method completes, the function passed in the callback parameter is called with a single parameter of type AsyncResult. 
          *                  The body is provided in the requested format in the asyncResult.value property.
          */
-        getAsync(coerciontype: Office.CoercionType, options?: Office.AsyncContextOptions, callback?: (result: AsyncResult<string>) => void): void;
-        getAsync(coerciontype: Office.CoercionType, callback?: (result: AsyncResult<string>) => void): void;
+        getAsync(coercionType: Office.CoercionType, options?: Office.AsyncContextOptions, callback?: (result: AsyncResult<string>) => void): void;
         /**
          * Returns the current body in a specified format.
          *
@@ -8794,7 +8793,7 @@ declare namespace Office {
          * @param callback Optional. When the method completes, the function passed in the callback parameter is called with a single parameter of type Office.AsyncResult.
          *                  The body is provided in the requested format in the asyncResult.value property.
          */
-        getAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
+        getAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
 
         /**
          * Gets a value that indicates whether the content is in HTML or text format.
@@ -8812,7 +8811,6 @@ declare namespace Office {
          *                  The content type is returned as one of the CoercionType values in the asyncResult.value property.
          */
         getTypeAsync(options?: Office.AsyncContextOptions, callback?: (result: AsyncResult<Office.CoercionType>) => void): void;
-        getTypeAsync(callback?: (result: AsyncResult<Office.CoercionType>) => void): void;
         /**
          * Adds the specified content to the beginning of the item body.
          *
@@ -8847,7 +8845,6 @@ declare namespace Office {
          *                  Any errors encountered will be provided in the asyncResult.error property.
          */
         prependAsync(data: string, options?: Office.AsyncContextOptions & CoercionTypeOptions, callback?: (result: AsyncResult<void>) => void): void;
-        prependAsync(data: string, callback?: (result: AsyncResult<void>) => void): void;
         /**
          * Adds the specified content to the beginning of the item body.
          *
@@ -8947,7 +8944,6 @@ declare namespace Office {
          *                  Any errors encountered will be provided in the asyncResult.error property.
          */
         setAsync(data: string, options?: Office.AsyncContextOptions & CoercionTypeOptions, callback?: (result: AsyncResult<void>) => void): void;
-        setAsync(data: string, callback?: (result: AsyncResult<void>) => void): void;
         /**
          * Replaces the entire body with the specified text.
          *
@@ -9055,7 +9051,6 @@ declare namespace Office {
          *                  Any errors encountered will be provided in the asyncResult.error property.
          */
         setSelectedDataAsync(data: string, options?: Office.AsyncContextOptions & CoercionTypeOptions, callback?: (result: AsyncResult<void>) => void): void;
-        setSelectedDataAsync(data: string, callback?: (result: AsyncResult<void>) => void): void;
         /**
          * Replaces the selection in the body with the specified text.
          *
@@ -10281,7 +10276,7 @@ declare namespace Office {
          *        asyncContext: Developers can provide any object they wish to access in the callback method.
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of type AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
          /**
          * Asynchronously returns selected data from the subject or body of a message.
          *
@@ -10307,7 +10302,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<string>) => void): void;
         /**
          * Asynchronously loads custom properties for this add-in on the selected item.
          *
@@ -12212,7 +12207,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Asynchronously returns selected data from the subject or body of a message.
          *
@@ -12240,7 +12235,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Removes an attachment from a message or appointment.
          *
@@ -13684,7 +13679,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Asynchronously returns selected data from the subject or body of a message.
          *
@@ -13712,7 +13707,7 @@ declare namespace Office {
          * @param callback When the method completes, the function passed in the callback parameter is called with a single parameter of 
          *                 type Office.AsyncResult.
          */
-        getSelectedDataAsync(coerciontype: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
+        getSelectedDataAsync(coercionType: Office.CoercionType, options: Office.AsyncContextOptions, callback: (result: AsyncResult<any>) => void): void;
         /**
          * Asynchronously loads custom properties for this add-in on the selected item.
          *