I put together a Macro that should work for you. It removes every character in the copied string that isn't a digit, then pastes the result. Here's how to get it into ClipboardFusion:

• Download the file attached to this post
• Open the ClipboardFusion Settings window
• On the "Macros" tab, click the "Import" button
• Select the file you downloaded in the first step
• In the window that pops up, you can review the code and assign the Macro a HotKey
• Click OK to close the Macro Edit window, then OK again to save and apply your changes

Thanks!

I've modified the macro above to keep letters as well as digits and attached the new version to this post. You can follow the steps above to get it to run in ClipboardFusion

Returning null on the Macro causes the output of the Macro to not show up in the output window, since setting it to null is essentially outputting nothing. To test it I commented out all of the copying/pasting functions, and returned the modified text variable after the Regex.Replace function is run. I didn't leave it this way for this final version though, because the paste function will set the Clipboard, then the Clipboard would be set again by the result of the Macro. This could slow the whole task down, as well as lock up the Clipboard for other programs.