Opening prev. excrypted Excel files with Excel 2010

[Stackie]

I have a user with a previous version of Excel that was password protected AND encrypted. Now another user who has the password is using Excel 2010 and can not open it. The error message says "Excel cannot open this file. Encryption type is not available." However, several others in her dept. can open it.

[Hammad]

Hmm...try decrypting it in excel 2007 and encrypt again using excel 2010. Check the following link...THat might solve your problem...

http://www.sevenforums.com/microsoft-office/207443-excel-cannot-open-file-encryption-type-used-not-available.html

[Steve Krause]

Since there are other people in her department who can open the file, I assume they are all using Excel 2010 yes?

My advice would be to have someone on her team who can open it re-save it with the encryption enabled for excel 2010 and then see if the person having problems can open that file (Excel 2010 to Excel 2010). If they are STILL having issues, uninstall Excel on that users desktop and reinstall it. They must have something else corrupted and you will save time by just blowing it away and starting fresh.

Here's a few references:

Encrypt and Password Protect Office 2010 Documents

Encrypt and Password Protect Office 2007 Documents