diff --git a/src/GoogleSheetsWrapper/GoogleSheetsWrapper.csproj b/src/GoogleSheetsWrapper/GoogleSheetsWrapper.csproj
index 9b22b33..43e758f 100644
--- a/src/GoogleSheetsWrapper/GoogleSheetsWrapper.csproj
+++ b/src/GoogleSheetsWrapper/GoogleSheetsWrapper.csproj
@@ -8,7 +8,7 @@
     <PackageProjectUrl>https://github.com/SteveWinward/GoogleSheetsWrapper</PackageProjectUrl>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <RepositoryUrl>https://github.com/SteveWinward/GoogleSheetsWrapper</RepositoryUrl>
-    <Version>2.0.26</Version>
+    <Version>2.0.27</Version>
     <PackageTags>Google Sheets</PackageTags>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <Description>A simple wrapper library that makes it easier to perform CRUD operations against Google Sheets spreadsheets.</Description>
diff --git a/src/GoogleSheetsWrapper/SheetExporter.cs b/src/GoogleSheetsWrapper/SheetExporter.cs
index 17d2598..4fca382 100644
--- a/src/GoogleSheetsWrapper/SheetExporter.cs
+++ b/src/GoogleSheetsWrapper/SheetExporter.cs
@@ -18,9 +18,9 @@ public class SheetExporter
         /// <summary>
         /// Constructor
         /// </summary>
-        /// <param name="spreadsheetID"></param>
-        /// <param name="serviceAccountEmail"></param>
-        /// <param name="tabName"></param>
+        /// <param name="spreadsheetID">The identifier of the spreadsheet to export.</param>
+        /// <param name="serviceAccountEmail">The service account email used for authentication.</param>
+        /// <param name="tabName">The tab to export.</param>
         public SheetExporter(string spreadsheetID, string serviceAccountEmail, string tabName)
         {
             _sheetHelper = new SheetHelper(spreadsheetID, serviceAccountEmail, tabName);
@@ -29,16 +29,16 @@ public SheetExporter(string spreadsheetID, string serviceAccountEmail, string ta
         /// <summary>
         /// Constructor
         /// </summary>
-        /// <param name="sheetHelper"></param>
+        /// <param name="sheetHelper">The initialized sheet helper to use for export operations.</param>
         public SheetExporter(SheetHelper sheetHelper)
         {
             _sheetHelper = sheetHelper;
         }
 
         /// <summary>
-        /// 
+        /// Initializes the underlying sheet helper using service account credentials.
         /// </summary>
-        /// <param name="jsonCredentials"></param>
+        /// <param name="jsonCredentials">Service account credentials in JSON format.</param>
         public void Init(string jsonCredentials)
         {
             _sheetHelper.Init(jsonCredentials);
@@ -47,9 +47,9 @@ public void Init(string jsonCredentials)
         /// <summary>
         /// Exports the current Google Sheet tab to a CSV file
         /// </summary>
-        /// <param name="range"></param>
-        /// <param name="stream"></param>
-        /// <param name="delimiter"></param>
+        /// <param name="range">The range to export.</param>
+        /// <param name="stream">The destination stream for the CSV content.</param>
+        /// <param name="delimiter">The delimiter used between CSV fields.</param>
         public void ExportAsCsv(SheetRange range, Stream stream, string delimiter = ",")
         {
             var config = new CsvConfiguration(CultureInfo.InvariantCulture)
@@ -63,9 +63,9 @@ public void ExportAsCsv(SheetRange range, Stream stream, string delimiter = ",")
         /// <summary>
         /// Exports the current Google Sheet tab to a CSV file.  This override lets you explicitly specify the CsvConfiguration object for the CsvHelper library.
         /// </summary>
-        /// <param name="range"></param>
-        /// <param name="stream"></param>
-        /// <param name="csvConfiguration"></param>
+        /// <param name="range">The range to export.</param>
+        /// <param name="stream">The destination stream for the CSV content.</param>
+        /// <param name="csvConfiguration">The CsvHelper settings used to generate the CSV content.</param>
         public void ExportAsCsv(SheetRange range, Stream stream, CsvConfiguration csvConfiguration)
         {
             var rows = _sheetHelper.GetRowsFormatted(range);
@@ -84,10 +84,10 @@ public void ExportAsCsv(SheetRange range, Stream stream, CsvConfiguration csvCon
         }
 
         /// <summary>
-        /// Exports the current Google Sheet tab to a CSV file
+        /// Exports the specified Google Sheet range to an Excel workbook.
         /// </summary>
-        /// <param name="range"></param>
-        /// <param name="stream"></param>
+        /// <param name="range">The range to export.</param>
+        /// <param name="stream">The destination stream for the Excel workbook.</param>
         public void ExportAsExcel(SheetRange range, Stream stream)
         {
             var rows = _sheetHelper.GetRowsFormatted(range);
diff --git a/src/GoogleSheetsWrapper/SheetFieldAttributeUtils.cs b/src/GoogleSheetsWrapper/SheetFieldAttributeUtils.cs
index e0008d9..533d303 100644
--- a/src/GoogleSheetsWrapper/SheetFieldAttributeUtils.cs
+++ b/src/GoogleSheetsWrapper/SheetFieldAttributeUtils.cs
@@ -14,12 +14,12 @@ namespace GoogleSheetsWrapper
     public class SheetFieldAttributeUtils
     {
         /// <summary>
-        /// 
+        /// Populates the attributed properties of a record from a row returned by Google Sheets.
         /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <param name="record"></param>
-        /// <param name="row"></param>
-        /// <param name="minColumnId"></param>
+        /// <typeparam name="T">The record type to populate.</typeparam>
+        /// <param name="record">The record instance to populate.</param>
+        /// <param name="row">The source row values.</param>
+        /// <param name="minColumnId">The one-based column index represented by the first value in <paramref name="row"/>.</param>
         /// <exception cref="ArgumentException"></exception>
         public static void PopulateRecord<T>(T record, IList<object> row, int minColumnId = 1) where T : BaseRecord
         {
@@ -99,11 +99,11 @@ public static void PopulateRecord<T>(T record, IList<object> row, int minColumnI
         /// <summary>
         /// Converts the objects values to CellData object for Google Sheets API
         /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <param name="record"></param>
-        /// <param name="attribute"></param>
-        /// <param name="property"></param>
-        /// <returns></returns>
+        /// <typeparam name="T">The record type containing the property.</typeparam>
+        /// <param name="record">The record that provides the property value.</param>
+        /// <param name="attribute">The sheet metadata that defines the cell format.</param>
+        /// <param name="property">The property to convert.</param>
+        /// <returns>A Google Sheets cell containing the property's value and formatting.</returns>
         /// <exception cref="ArgumentException"></exception>
         public static CellData GetCellDataForSheetField<T>(T record, SheetFieldAttribute attribute, PropertyInfo property)
         {
@@ -238,11 +238,11 @@ public static CellData GetCellDataForSheetField<T>(T record, SheetFieldAttribute
         }
 
         /// <summary>
-        /// 
+        /// Gets the one-based sheet column index associated with a record property.
         /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <param name="expression"></param>
-        /// <returns></returns>
+        /// <typeparam name="T">The record type that declares the property.</typeparam>
+        /// <param name="expression">An expression that selects the attributed property.</param>
+        /// <returns>The property's configured column index.</returns>
         public static int GetColumnId<T>(Expression<Func<T, object>> expression) where T : BaseRecord
         {
             var attribute = GetSheetFieldAttribute(expression);
@@ -251,20 +251,20 @@ public static int GetColumnId<T>(Expression<Func<T, object>> expression) where T
         }
 
         /// <summary>
-        /// 
+        /// Gets all sheet field metadata declared by a record type, ordered by column index.
         /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <returns></returns>
+        /// <typeparam name="T">The record type to inspect.</typeparam>
+        /// <returns>The sheet field attributes and their associated properties.</returns>
         public static SortedDictionary<SheetFieldAttribute, PropertyInfo> GetAllSheetFieldAttributes<T>()
         {
             return GetAllSheetFieldAttributes(typeof(T));
         }
 
         /// <summary>
-        /// 
+        /// Gets all sheet field metadata declared by a type, ordered by column index.
         /// </summary>
-        /// <param name="type"></param>
-        /// <returns></returns>
+        /// <param name="type">The type to inspect.</param>
+        /// <returns>The sheet field attributes and their associated properties.</returns>
         public static SortedDictionary<SheetFieldAttribute, PropertyInfo> GetAllSheetFieldAttributes(Type type)
         {
             var result = new SortedDictionary<SheetFieldAttribute, PropertyInfo>(new SheetFieldAttributeComparer());
diff --git a/src/GoogleSheetsWrapper/SheetHelper.cs b/src/GoogleSheetsWrapper/SheetHelper.cs
index 4df669d..d8f56d1 100644
--- a/src/GoogleSheetsWrapper/SheetHelper.cs
+++ b/src/GoogleSheetsWrapper/SheetHelper.cs
@@ -38,7 +38,7 @@ public class SheetHelper
         public string ServiceAccountEmail { get; set; }
 
         /// <summary>
-        /// 
+        /// OAuth scopes requested when authenticating with the Google Sheets API.
         /// </summary>
         public string[] Scopes { get; set; } = { SheetsService.Scope.Spreadsheets };
 
@@ -55,9 +55,9 @@ public class SheetHelper
         /// <summary>
         /// Constructor
         /// </summary>
-        /// <param name="spreadsheetID"></param>
-        /// <param name="serviceAccountEmail"></param>
-        /// <param name="tabName"></param>
+        /// <param name="spreadsheetID">The identifier of the spreadsheet to access.</param>
+        /// <param name="serviceAccountEmail">The service account email used to impersonate an account.</param>
+        /// <param name="tabName">The tab to select after initialization.</param>
         public SheetHelper(string spreadsheetID, string serviceAccountEmail, string tabName)
         {
             SpreadsheetID = spreadsheetID;
@@ -68,7 +68,7 @@ public SheetHelper(string spreadsheetID, string serviceAccountEmail, string tabN
         /// <summary>
         /// Initializes the SheetHelper object
         /// </summary>
-        /// <param name="jsonCredentials"></param>
+        /// <param name="jsonCredentials">Service account credentials in JSON format.</param>
         public void Init(string jsonCredentials)
         {
             Init(jsonCredentials, default);
@@ -77,8 +77,8 @@ public void Init(string jsonCredentials)
         /// <summary>
         /// Initializes the SheetHelper object with authentication
         /// </summary>
-        /// <param name="jsonCredentials"></param>
-        /// <param name="httpClientFactory"></param>
+        /// <param name="jsonCredentials">Service account credentials in JSON format.</param>
+        /// <param name="httpClientFactory">Factory used to create HTTP clients for API requests.</param>
         public void Init(string jsonCredentials, Google.Apis.Http.IHttpClientFactory httpClientFactory)
         {
             var credential = (ServiceAccountCredential)
@@ -121,7 +121,7 @@ protected void EnsureServiceInitialized()
         /// <summary>
         /// Set the tab to the specified newTabName value
         /// </summary>
-        /// <param name="newTabName"></param>
+        /// <param name="newTabName">The existing tab to select, or the name of a tab to create.</param>
         public void UpdateTabName(string newTabName)
         {
             EnsureServiceInitialized();
@@ -156,7 +156,7 @@ public void UpdateTabName(string newTabName)
         /// <summary>
         /// Returns a list of all tab names in the Google Spreadsheet
         /// </summary>
-        /// <returns></returns>
+        /// <returns>The titles of all tabs in the spreadsheet.</returns>
         public List<string> GetAllTabNames()
         {
             EnsureServiceInitialized();
@@ -173,10 +173,10 @@ public List<string> GetAllTabNames()
         /// <summary>
         /// Return a collection of rows for a given SheetRange input
         /// </summary>
-        /// <param name="range"></param>
-        /// <param name="valueRenderOption"></param>
-        /// <param name="dateTimeRenderOption"></param>
-        /// <returns></returns>
+        /// <param name="range">The range to retrieve.</param>
+        /// <param name="valueRenderOption">How cell values are returned by the API.</param>
+        /// <param name="dateTimeRenderOption">How date and time values are returned by the API.</param>
+        /// <returns>The values in the requested rows, or an empty collection when no values exist.</returns>
         public IList<IList<object>> GetRows(SheetRange range,
             ValueRenderOptionEnum valueRenderOption = ValueRenderOptionEnum.UNFORMATTEDVALUE,
             DateTimeRenderOptionEnum dateTimeRenderOption = DateTimeRenderOptionEnum.SERIALNUMBER)
@@ -206,8 +206,8 @@ public IList<IList<object>> GetRows(SheetRange range,
         /// <summary>
         /// Return a collection of rows formatted values for a given SheetRange input
         /// </summary>
-        /// <param name="range"></param>
-        /// <returns></returns>
+        /// <param name="range">The range to retrieve.</param>
+        /// <returns>The formatted values in the requested rows, or an empty collection when no values exist.</returns>
         public IList<IList<object>> GetRowsFormatted(SheetRange range)
         {
             EnsureServiceInitialized();
@@ -235,8 +235,8 @@ public IList<IList<object>> GetRowsFormatted(SheetRange range)
         /// <summary>
         /// Clears values from a spreadsheet (NOTE: All other properties of the cell (such as formatting, data validation, etc..) are kept.)
         /// </summary>
-        /// <param name="range"></param>
-        /// <returns></returns>
+        /// <param name="range">The range whose values should be cleared.</param>
+        /// <returns>The API response describing the cleared range.</returns>
         public ClearValuesResponse ClearRange(SheetRange range)
         {
             EnsureServiceInitialized();
@@ -252,8 +252,8 @@ public ClearValuesResponse ClearRange(SheetRange range)
         /// <summary>
         /// Deletes a specified column
         /// </summary>
-        /// <param name="col"></param>
-        /// <returns></returns>
+        /// <param name="col">The one-based index of the column to delete.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse DeleteColumn(int col)
         {
             EnsureServiceInitialized();
@@ -284,8 +284,8 @@ public BatchUpdateSpreadsheetResponse DeleteColumn(int col)
         /// <summary>
         /// Deletes a specified column
         /// </summary>
-        /// <param name="columnLetter"></param>
-        /// <returns></returns>
+        /// <param name="columnLetter">The letter-based column identifier to delete.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse DeleteColumn(string columnLetter)
         {
             EnsureServiceInitialized();
@@ -298,8 +298,8 @@ public BatchUpdateSpreadsheetResponse DeleteColumn(string columnLetter)
         /// <summary>
         /// Deletes a specified row
         /// </summary>
-        /// <param name="row"></param>
-        /// <returns></returns>
+        /// <param name="row">The one-based index of the row to delete.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse DeleteRow(int row)
         {
             EnsureServiceInitialized();
@@ -328,11 +328,11 @@ public BatchUpdateSpreadsheetResponse DeleteRow(int row)
         }
 
         /// <summary>
-        ///
+        /// Deletes all rows in the inclusive range.
         /// </summary>
-        /// <param name="startRow"></param>
-        /// <param name="endRow"></param>
-        /// <returns></returns>
+        /// <param name="startRow">The one-based index of the first row to delete.</param>
+        /// <param name="endRow">The one-based index of the last row to delete.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse DeleteRows(int startRow, int endRow)
         {
             EnsureServiceInitialized();
@@ -363,8 +363,8 @@ public BatchUpdateSpreadsheetResponse DeleteRows(int startRow, int endRow)
         /// <summary>
         /// Inserts a blank new column using the column index as the id (NOTE: 1 is the first index for the column based index)
         /// </summary>
-        /// <param name="column"></param>
-        /// <returns></returns>
+        /// <param name="column">The one-based index where the column is inserted.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse InsertBlankColumn(int column)
         {
             EnsureServiceInitialized();
@@ -401,8 +401,8 @@ public BatchUpdateSpreadsheetResponse InsertBlankColumn(int column)
         /// <summary>
         /// Inserts a blank new column using a letter notation (i.e. B2 as the column id)
         /// </summary>
-        /// <param name="columnLetter"></param>
-        /// <returns></returns>
+        /// <param name="columnLetter">The letter-based column identifier where the column is inserted.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse InsertBlankColumn(string columnLetter)
         {
             EnsureServiceInitialized();
@@ -415,8 +415,8 @@ public BatchUpdateSpreadsheetResponse InsertBlankColumn(string columnLetter)
         /// <summary>
         /// Inserts a new blank row
         /// </summary>
-        /// <param name="row"></param>
-        /// <returns></returns>
+        /// <param name="row">The one-based index where the row is inserted.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse InsertBlankRow(int row)
         {
             EnsureServiceInitialized();
@@ -455,12 +455,12 @@ public BatchUpdateSpreadsheetResponse InsertBlankRow(int row)
         ///
         /// This is useful to avoid throttling limits with the Google Sheets API
         /// </summary>
-        /// <param name="updates"></param>
+        /// <param name="updates">The cell ranges and data to update.</param>
         /// <param name="fieldMask">Allows you to specify what fields you want to update in the BatchUpdate call,
         /// defaults to userEnteredValue to keep existing cell styles, use "*" to update all properties here.
         /// Other valid field mask values are: dataSourceFormula, dataSourceTable, dataValidation, effectiveFormat, effectiveValue, formattedValue, hyperlink, note, pivotTable, textFormatRuns, userEnteredFormat, userEnteredValue
         /// </param>
-        /// <returns></returns>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse BatchUpdate(List<BatchUpdateRequestObject> updates, string fieldMask = "userEnteredValue")
         {
             EnsureServiceInitialized();
@@ -554,15 +554,15 @@ public class SheetHelper<T> : SheetHelper where T : BaseRecord
         /// </summary>
         /// <param name="spreadsheetID"></param>
         /// <param name="serviceAccountEmail"></param>
-        /// <param name="tabName"></param>
+        /// <param name="tabName">The tab to which records are appended.</param>
         public SheetHelper(string spreadsheetID, string serviceAccountEmail, string tabName)
             : base(spreadsheetID, serviceAccountEmail, tabName) { }
 
         /// <summary>
         /// Adds a record to the next row in the Google Sheet tab
         /// </summary>
-        /// <param name="record"></param>
-        /// <returns></returns>
+        /// <param name="record">The record to append.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse AppendRow(T record)
         {
             EnsureServiceInitialized();
@@ -571,10 +571,10 @@ public BatchUpdateSpreadsheetResponse AppendRow(T record)
         }
 
         /// <summary>
-        /// Adds mulitlpe rows to the next row in the Google Sheets tab
+        /// Adds multiple rows to the next row in the Google Sheets tab
         /// </summary>
-        /// <param name="records"></param>
-        /// <returns></returns>
+        /// <param name="records">The records to append.</param>
+        /// <returns>The response from the batch update operation.</returns>
         public BatchUpdateSpreadsheetResponse AppendRows(IList<T> records)
         {
             EnsureServiceInitialized();
diff --git a/src/GoogleSheetsWrapper/SheetRange.cs b/src/GoogleSheetsWrapper/SheetRange.cs
index ba8d540..fdd14ad 100644
--- a/src/GoogleSheetsWrapper/SheetRange.cs
+++ b/src/GoogleSheetsWrapper/SheetRange.cs
@@ -10,12 +10,12 @@ namespace GoogleSheetsWrapper
     public class SheetRange : IEquatable<SheetRange>
     {
         /// <summary>
-        /// Is this A1 notation?
+        /// Gets the range expressed in A1 notation when the range has an end column.
         /// </summary>
         public string A1Notation { get; private set; }
 
         /// <summary>
-        /// Is this R1C1 notation?
+        /// Gets the range expressed in R1C1 notation.
         /// </summary>
         public string R1C1Notation { get; private set; }
 
@@ -95,11 +95,11 @@ private static readonly List<string> aToZ
         /// <summary>
         /// Row and column numbers are 1 based indexes
         /// </summary>
-        /// <param name="tabName"></param>
-        /// <param name="startColumn"></param>
-        /// <param name="endColumn"></param>
-        /// <param name="startRow"></param>
-        /// <param name="endRow"></param>
+        /// <param name="tabName">The optional sheet tab name.</param>
+        /// <param name="startColumn">The one-based index of the first column.</param>
+        /// <param name="startRow">The one-based index of the first row.</param>
+        /// <param name="endColumn">The optional one-based index of the last column.</param>
+        /// <param name="endRow">The optional one-based index of the last row.</param>
         public SheetRange(string tabName, int startColumn, int startRow, int? endColumn = null, int? endRow = null)
         {
             _startColumn = startColumn;
@@ -114,7 +114,7 @@ public SheetRange(string tabName, int startColumn, int startRow, int? endColumn
         /// <summary>
         /// Create a SheetRange from an A1 notation or an R1C1 notation
         /// </summary>
-        /// <param name="rangeValue"></param>
+        /// <param name="rangeValue">A valid A1 or R1C1 range expression.</param>
         public SheetRange(string rangeValue)
         {
             SheetRange range;
@@ -146,8 +146,8 @@ public SheetRange(string rangeValue)
         /// <summary>
         /// columnId is a 1 based index
         /// </summary>
-        /// <param name="columnID"></param>
-        /// <returns></returns>
+        /// <param name="columnID">The one-based column index.</param>
+        /// <returns>The corresponding A1 column letters.</returns>
         public static string GetLettersFromColumnID(int columnID)
         {
             var block = columnID - 1;
@@ -169,8 +169,8 @@ public static string GetLettersFromColumnID(int columnID)
         /// <summary>
         /// The resulting column id is on a 1 based index (i.e. A => 1)
         /// </summary>
-        /// <param name="letters"></param>
-        /// <returns></returns>
+        /// <param name="letters">The A1 column letters to convert.</param>
+        /// <returns>The corresponding one-based column index.</returns>
         public static int GetColumnIDFromLetters(string letters)
         {
             var result = 0;
@@ -245,10 +245,10 @@ private void UpdateFieldAndNotiationProperties<T>(ref T currentValue, T newValue
         #region IEquatable Interface Implementation
 
         /// <summary>
-        /// 
+        /// Calculates a hash code from the range coordinates and tab name.
         /// </summary>
-        /// <param name="obj"></param>
-        /// <returns></returns>
+        /// <param name="obj">The range for which to calculate a hash code.</param>
+        /// <returns>A hash code for the specified range.</returns>
         public static int GetHashCode(SheetRange obj)
         {
             return HashCode.Combine(
@@ -260,10 +260,10 @@ public static int GetHashCode(SheetRange obj)
         }
 
         /// <summary>
-        /// 
+        /// Determines whether this range has the same coordinates and notation as another range.
         /// </summary>
-        /// <param name="other"></param>
-        /// <returns></returns>
+        /// <param name="other">The range to compare with this instance.</param>
+        /// <returns><see langword="true"/> when the ranges are equal; otherwise, <see langword="false"/>.</returns>
         public bool Equals(SheetRange other)
         {
             return
@@ -279,19 +279,19 @@ public bool Equals(SheetRange other)
         }
 
         /// <summary>
-        /// 
+        /// Determines whether this range equals another object.
         /// </summary>
-        /// <param name="obj"></param>
-        /// <returns></returns>
+        /// <param name="obj">The object to compare with this instance.</param>
+        /// <returns><see langword="true"/> when the object is an equal range; otherwise, <see langword="false"/>.</returns>
         public override bool Equals(object obj)
         {
             return Equals((SheetRange)obj);
         }
 
         /// <summary>
-        /// 
+        /// Returns a hash code based on the range coordinates and tab name.
         /// </summary>
-        /// <returns></returns>
+        /// <returns>A hash code for this range.</returns>
         public override int GetHashCode()
         {
             return GetHashCode(this);
diff --git a/src/GoogleSheetsWrapper/Utils/PhoneNumberParsing.cs b/src/GoogleSheetsWrapper/Utils/PhoneNumberParsing.cs
index 94a6de2..f56c448 100644
--- a/src/GoogleSheetsWrapper/Utils/PhoneNumberParsing.cs
+++ b/src/GoogleSheetsWrapper/Utils/PhoneNumberParsing.cs
@@ -9,30 +9,30 @@ namespace GoogleSheetsWrapper.Utils
     public class PhoneNumberParsing
     {
         /// <summary>
-        /// 
+        /// Removes any occurrence of the United States country code ("+1") and all non-numeric characters.
         /// </summary>
-        /// <param name="number"></param>
-        /// <returns></returns>
+        /// <param name="number">The phone number to normalize.</param>
+        /// <returns>The normalized phone number containing digits only.</returns>
         public static string RemoveUSInterationalPhoneCode(string number)
         {
             return RemoveExtraCharactersFromPhoneNumber(number.Replace("+1", ""));
         }
 
         /// <summary>
-        /// 
+        /// Removes all non-numeric characters from a phone number.
         /// </summary>
-        /// <param name="number"></param>
-        /// <returns></returns>
+        /// <param name="number">The phone number to normalize.</param>
+        /// <returns>The phone number containing digits only.</returns>
         public static string RemoveExtraCharactersFromPhoneNumber(string number)
         {
             return Regex.Replace(number, @"[^\d]", "");
         }
 
         /// <summary>
-        /// 
+        /// Converts a normalized United States phone number to a numeric value.
         /// </summary>
-        /// <param name="number"></param>
-        /// <returns></returns>
+        /// <param name="number">The phone number to convert.</param>
+        /// <returns>The numeric phone number with any occurrence of the United States country code ("+1") removed.</returns>
         public static long ConvertToLong(string number)
         {
             var numberAsString = RemoveExtraCharactersFromPhoneNumber(number.Replace("+1", ""));