How to remove the special character form the xml file using the C#

Here is xml file

<root>
<paragraph><:carVersion>Audi A4 1.8 TFSI Multitronic</:carVersion> car <:mileage>Mileage</:mileage> is best.
</paragraph>
<paragraph>Its engine $ is <general_positive>bad</general_positive>.
</paragraph>
<paragraph><communication>USB Compatibility</communication> is <general_positive>not</general_positive> <general_positive>poor</general_positive>.
</paragraph>
<paragraph>economy of the, car is <economy>2.13 lakhs</economy>.
Its <door>Conventional  @door</door> is good enought.
Its support Lumbar Support seat.
</paragraph>
<paragraph>Its has the <lock>Child Safety Lock</lock> which is <general_negative>Complete</general_negative>
</paragraph>
<paragraph><carVersion>Audi A4 1.8 TFSI Multitronic</carVersion>  has the <carVersion>Audi A4 1.8 TFSI Multitronic</carVersion>  color.</paragraph>
</root>

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