Unable to auto send XLS output using Report Manager and Gmail G-suite mail client

Unable to auto send XLS or XLSX output using Report Manager and Gmail G-suite mail client. I AM able to successfully schedule and send PDF reports. XLS and XLSX reports are generated and placed into output directory but no evidence of email having been initiated.  I have reached out to Google G-suite support and they indicate there are no errors hitting their platform.  Is there a place for me to look  in ACCPAC to find a log of some sort to try to find whatever error may be occurring? Does anyone know what may be the problem between