Often, an "activation loop" happens because old corporate credentials are stuck in Windows. The "Excel Fix 5.95" tool pretends to solve this, but you can do it manually in 30 seconds.
Steps:
If your files are constantly corrupting, the problem might be Excel itself. Install LibreOffice (100% free, open source). It opens .xlsx files natively. It does not have activation codes, viruses, or pop-ups. excel fix 5.95 activation code
If activation fails due to an incorrect key: Often, an "activation loop" happens because old corporate