These endpoints are specific to Xero Files API
curl \ -H "Authorization: Bearer $ACCESS_TOKEN" \ https://api.xero.com/files.xro/1.0/Files
curl \ -H "Authorization: Bearer $ACCESS_TOKEN" \ https://api.xero.com/files.xro/1.0/Inbox
curl \ -H "Authorization: Bearer $ACCESS_TOKEN" \ https://api.xero.com/files.xro/1.0/Folders