Hi @RMeena_9,
Do you want to transfer the Excel data from OneDrive to SharePoint and connect it to your canvas app?
Firstly, there is no direct way to connect an excel file on SharePoint Document Library to Power Apps.
As a workaround, you could directly export the excel table to a SharePoint list, which is the better way I think.
In excel, it already has the function of "export to SharePoint list". Then it will automatically generate a new list stored the data of the excel file.
Firstly, you need to download this excel file. Only excel in local has this function.
Secondly, please format your data as a table.
Thirdly, choose this table, in the design pane, select export.

Click "export to SharePoint list"

Then, the data will be exported to SharePoint list.
Now, you should connect the SharePoint list to your canvas app. It it necessary for you to build the connection one more time.