Our domain is not hosted or controlled by Wix, it’s imported/pointed from GoDaddy, which i know there is a txt hosting functionality when transferred but it still doesn’t seem like i can host the file like we need at a dynamic route.
Why not ask GoDaddy for help then if you are just pointing from GoDaddy to Wix.
Note.
It’s possible to connect your domain without changing name servers by pointing to Wix . However, we do not recommend the pointing method because we may be unable to assist you if you have DNS related issues in the future.
https://support.wix.com/en/article/pointing-vs-name-servers-domain-connection
https://support.wix.com/en/article/connecting-your-godaddy-domain-to-wix-via-pointing-9528059
When connecting your domain via pointing consider the following:
Reduced support & assistance: When you connect your domain to Wix by name servers, we can offer support and assist you in creating any DNS records you might need. Whereas if you connect to Wix by pointing, you would need to contact your domain host with any domain/DNS related issues.
Feature updates are not automatic: We can automatically modify your DNS to accommodate any new feature that requires DNS changes. However, when choosing pointing you would need to manually make these changes with your domain host.
Finally, this forum is for code related issues with your site, for your question you are better suited going through Wix Support for more help.
https://support.wix.com/en/article/contacting-wix-support
Although going through GoDaddy yourself would be the best option to you as they still control your domain and it’s dns settings.