1 - Have had a good look at the report and thank you for posting it.
2 - It is submitted that the Issue Described below arise from the Files from an iMac from 2007 were created on a very old version of the Microsoft Office for Mac that would run on an iMac from 2007.
3 - This computer " iMac (24-inch, M1, 2021) " would have to be running the Most Recent version of the Microsoft suite of Applications that are Compatible with the Apple Silicon M Class Computers.
4 - As presented further down in this Report - this computer appears to be Enrolled in an MDM ( Mobile Digital Management ) Service.
5 - Is that correct ?
Problem: Other problem
Q - Description: Inconsistent errors on trying to open different files in different programs files which I copied from a 2007 iMac which had no problems opening those files.
Minor Issues:
Q - No Time Machine backup - Time Machine backup not found.
A - Under the present setup, All Important Data is at risk of loss. That is ok if the Data can be reproduced at a later time.
Make Time Machine Backup is very useful
Q - Configuration profiles found - This computer may have configuration profiles installed. These are sometimes used by malware.
Hardware Information: iMac (24-inch, M1, 2021)
Configuration Profiles:
com.apple.mail.managed
SMIMEEnabled
OutgoingMailServerUseSSL
PreventAppSheet
EmailAccountName
EmailAddress
IncomingMailServerUseSSL
EmailAccountType
EmailAccountDescription
OutgoingMailServerPortNumber
IncomingMailServerHostName
IncomingPassword
IncomingMailServerAuthentication
OutgoingPasswordSameAsIncomingPassword
OutgoingMailServerHostName
IncomingMailServerUsername
PreventMove
OutgoingMailServerAuthentication
IncomingMailServerPortNumber
OutgoingMailServerUsername