992493-Add note in accessing relative range in worksheet cells manipulation page

Document-Processing/Excel/Excel-Library/NET/Worksheet-Cells-Manipulation.md

@@ -126,6 +126,8 @@ The following code example illustrates how to access the range relatively to the
 
 N> Here row and column indexes in the range are "one-based".
 
+N> When **ExcelRangeIndexerMode** is set to **Relative**, only numeric index access is relative to the specified range. In this mode, row and column indexes are one-based and reference cells within the range. Cell name based references (example A1, B5) always points to the worksheet and returns results from the worksheet origin rather than from the specified range.
+
 {% tabs %}  
 {% highlight c# tabtitle="C# [Cross-platform]" playgroundButtonLink="https://raw.githubusercontent.com/SyncfusionExamples/XlsIO-Examples/master/Editing%20Excel%20cells/Access%20Relative%20Range/.NET/Access%20Relative%20Range/Access%20Relative%20Range/Program.cs,180" %}
 using (ExcelEngine excelEngine = new ExcelEngine())
@@ -1074,4 +1076,4 @@ A complete working example to clear cell content in an Excel worksheet in C# is
 
 The [IRange](https://help.syncfusion.com/cr/document-processing/Syncfusion.XlsIO.IRange.html) interface offers a robust collection of properties for in-depth manipulation and management of Excel worksheet ranges.
 
-With the Syncfusion<sup>&reg;</sup> Excel Library, you can perform various operations under IRange in an Excel worksheet using C#. Click [here](https://help.syncfusion.com/document-processing/excel/excel-library/net/cells-manipulation/list-of-apis-under-irange) for more details.
+With the Syncfusion<sup>&reg;</sup> Excel Library, you can perform various operations under IRange in an Excel worksheet using C#. Click [here](https://help.syncfusion.com/document-processing/excel/excel-library/net/cells-manipulation/list-of-apis-under-irange) for more details.