excel email attachments convert to PDF

Excel files received as excel files convert to PDF when downloaded or opening. I have tried right click and open with Excel and open in browser. Neither works.

I have Windows 10 and Office 2003. I have a Comcast email address and an Office 365 email address.

Help would be greatly appreciated.

Thanks

My thread should have read:

Email attachments received as excel files convert to PDF when downloaded or opening. I have tried right click and open with Excel and open in browser. Neither works.

I have Windows 10 and Office 2003. I have a Comcast email address and an Office 365 email address.

Help would be greatly appreciated.

Thanks

As Wynona says. Office 2007 and later had their default file formats changed, recognizable by having an x on the extension as in .xlsx or .docx. There is a convertor file downloadable for older versions of Office.
Download Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint File Formats from Official Microsoft Download Center

Why not send yourself a test xls file between your two email accounts and see what happens?

Thanks!! I will get Office 2010.

ATLBill said:

Thanks!! I will get Office 2010.

not needed. Word and Excel 2003 work fine with w10