If you receive Microsoft Excel cannot access the file, There are several possible reasons error message you can use the following suggestions to resolve the issue.

Attackers can attempt to hide malicious payloads in Excel files sent by e-mail by using a standard Excel feature, according to a Tuesday post by Mimecast researchers.

The Excel read-only technique was used in this scheme to "fool anti-malware systems." "Many anti-malware engines have difficulty deciphering encrypted files, so getting 'free' encryption as part of a ...