Issue with CSV file.

Hi all,
I am having a few issues with a CSV file i am trying to create. The steps that i am following are.

1. Open excel and create some data in sheet1
2. I insert 7 columns and some 30 rows but only for col1 and col2. Rest all columns(col3 to col7) remain blank
3. I save the xls and then again do a save as to .csv format
4. After saving in csv if i open the file in a text editor like notepad only the first 16 lines have the 6 commas (,) and the remaining rows dont have and commas after the first two row data.

I am attaching the files here.
Please view the files in this order for a better understanding:

1. Book1.xls
2. Book1.csv
3. Book1.txt

Please let me know how can i get the commas in each of the rows. I need data in this format to be processed. I dont seem to find the issue.