If you have a personally made spreadsheet containing contact information, you can easily convert it to CSV format and then to VCARD format so that you can import it into most contact management software (e.g. Evolution, Thunderbird addressbook).
First, you save the spreadsheet as CSV using commas as delimiters
(using OpenOffice Spreadsheet)
Open the CSV file in a text editor and copy the contents to the text field in this web page
http://homepage.mac.com/phrogz/CSV2vCard_v2.html
Go to Step 2 tab and choose the appropriate fields from the drop down
Go to the Step 3 tab and then copy the text in the text field and paste it into a VCF file.
Import the VCF file to your favorite contact management software
(using Evolution)
You can see that the name, number, and website are in their proper fields.
