If you want to overwrite a WooCommerce template, the first step is to find the template you want to overwrite. Once you have found the template, you will need to download the template to your computer. Once you have the template downloaded, you will need to open the template in a program like Adobe Photoshop or Adobe Illustrator. Once you have opened the template, you will need to find the WooCommerce files.
The WooCommerce files are located in the files section of the template. Once you have located the WooCommerce files, you will need to delete the existing files from the template and replace them with the new files. Once you have replaced the files, you will need to save the template. Once you have saved the template, you will need to upload the template to your WooCommerce server.