file format or extension invalid

15 pts.
Tags:
Excel 2007
Microsoft Excel
Microsoft Office File Extensions
XLS
XLSX
after using Excel 2007 for several months with no problem, I had to reformat and reload windows xp professional. then I installed Excel 2007 and now I can't open the xlsx files created by Excel 2007. I get the error in the above title box. Any help will be welcomed. Gervis.

Answer Wiki

Thanks. We'll let you know when a new response is added.

If you are using office XP after formatting your system then you will install file format converter which will available in windows website.Otherwise you are using office 2007 but still you are having problem means your system having affected with virus.so you may clean it

Discuss This Question: 1  Reply

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
  • Cornfused
    Thanks Exwindows. Actually I am using Microsoft Office Standard 2007 Student edition. It has Word, Excel, Powerpoint and Outlook. I will go to windows websight and try the file converter.
    15 pointsBadges:
    report

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following