Hello, Chandru,
Currently, it is not possible to upload the requested file type due to WordPress limitations. You can find the complete list of supported file types at the following link:
https://wordpress.com/support/accepted-filetypes/
If you would like to request the addition of support for Rive files, we kindly suggest submitting your request to the appropriate department via this link:
https://www.8theme.com/roadmap/
For urgent needs, you may also consider reaching out for customization services here:
https://www.8theme.com/account/#etheme_customization_panel/
Should you have any further questions or require assistance, please do not hesitate to contact us.
Best regards,
The 8Theme Team















