The sap export excel file opens and shows that the file format and extension of "XXX" do not match. The file may be damaged or unsafe. Do not open it unless you trust its source. Do you still want to

1. problem

• Use SAP export Excel Open after Excel when , Pop up tips ："xxx" The file format and extension of do not match . The file may be corrupted or unsafe . Unless you trust the source , Otherwise, do not open . Do you still want to open it ？
  

2. resolvent （ Adaptation version Office2000-Office2019 & Office 365）

• newly build xxx.reg file , And add the following

Windows Registry Editor Version 5.00

For Office 2003
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\11.0\Excel\Security]
"ExtensionHardening"=dword:00000000

;For Office 2007
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\12.0\Excel\Security]
"ExtensionHardening"=dword:00000000

;For Office 2010
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\14.0\Excel\Security]
"ExtensionHardening"=dword:00000000

;For Office 2013
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Excel\Security]
"ExtensionHardening"=dword:00000000

;For Office 2016 & Office 365
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Excel\Security]
"ExtensionHardening"=dword:00000000

;For Office 2019
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\17.0\Excel\Security]
"ExtensionHardening"=dword:00000000

• Double-click on the run xxx.reg file
  
• Open again Excel, Pop ups disappear ; Open file directly