This idea is beneficial to the part of the community that is not as knowledgeable in using REST and json files.
I suggest having a button to refresh the tables from a linked Excel file (hosted on OneDrive). Currently, I am removing and re-adding tables in which I have made changes.
Ideally, PowerApps would be able to track changes to the Excel tables live, but that doesn't sound possible.
Anonymous shared this idea ยท January 03, 2016
Your data connection will be refreshed on App Open. You may also manually refresh using the Data Sources area (click on the three dots and select "refresh").
Thank you,
Audrie