Step 1. Open a New Excel File

1. Select Data tab
2. Select From Text
   
3. Select the file that has data in it

Step 2. Choose File Type

1. Choose 'Delimited' as Original Data Type
   
2. Click on Next
   

Step 3. Confirm Delimiter Choices

Under Delimiters: 

1. Check 'Comma'  
   
2. Uncheck 'Tab'
   
3. Click on Next
   

Step 4. Column Data Format

1. Select all of the columns (use the shift key to highlight multiple columns),
   
2. Click on Text under Column Data Format
   
3. Click Finish and then OK