What is the best way to open the document ,which is in my on prem server

What is the best way to open the document ,which is in my on prem server
Hi Prem,
Currently, PowerApps have a integration with SharePoint On-Premises and SQL Server On-Premises. We can use a gateway to create connections to these two On-Premises data sources, then show data on an app based on tables or lists.
Please see these two blogs for a reference:
https://powerapps.microsoft.com/en-us/blog/connect-to-your-on-premises-data-sources-using-on-premises-data-gateway-from-powerapps/
https://powerapps.microsoft.com/en-us/blog/support-for-sharepoint-on-premises/
So I am afraid that open a document that is stored in other On-Premises will not be supported currently. Please consider to create a new request on PowerApps Ideas Forum, PGs will check your idea at PowerApps Ideas Forum, hope it can be considered in the future releases:
https://powerusers.microsoft.com/t5/PowerApps-Ideas/idb-p/PowerAppsIdeas
Best regards,
Mabel Mao