How to unmatch the Matches (Matched Transactions) in Bulk

Summary:

We have more than 10000+ matches, which we would like to unmatch due to change in the auto match rules. Is there any way we can select all the 10000+ matches at one shot and then Unmatch the same.

Content (required):

This will help in saving more time while the Administrators were trying to test the new automatch rules on the existing transactions.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):