962647- Update the Excel Export Sample and Value sorting Sample with Description.

[DeebigaSF4971]

Bug Description

Add the modification in UG document for Excel Export and value Sorting sample with description. Create the sample for memory stream in Excel Export sample.

Root Cause

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If there is an internal discussion on the forum, provide the link.

Reason for not identifying earlier

Find how it was missed in our earlier testing and development by analysing the below checklist. This will help prevent similar mistakes in the future.

Guidelines/documents are not followed

Common guidelines / Core team guideline
Specification document
Requirement document

Guidelines/documents are not given

Common guidelines / Core team guideline
Specification document
Requirement document

Reason:
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Action taken:
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Related areas:
Is there any other related areas also to be addressed?

Is Breaking issue?

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Solution description

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Output screenshots

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Before changes:
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After changes:
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Areas affected and ensured

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Is there any existing behavior change of other features due to this code change?

Does it have any known issues?

If this fix contains any known issues, provide the proper details about the issues.

Does it have memory leak?

Ensure the fix contains memory leak or not (if applicable).

MR CheckList

• Does it follow the design guidelines? It is mandatory that, we should not move the changes without reading this.
• Did UI automation passed without errors? If it is customer issue, make sure it is included in the IR automation.
• Properly working in Xamarin.Forms previewer.
• Ensured in iOS, Android, UWP and macOS (if supported).
• Have you ensured the changes in Android API 19 and iOS 9?
• Did you record this case in the unit test or UI test?

[SyncfusionBuild]

Your pull request has been created. Syncfusion support team will validate this commit and publish your changes accordingly.

[SyncfusionBuild]

Your pull request has been created. Syncfusion support team will validate this commit and publish your changes accordingly.