To create an Excel spreadsheet in Java, follow these steps:
1. Give the filename a .csv extension, which stands for Comma Separated Values
2. Print out the first line of text to the file as a comma separated list of column headers
3. Print out each row of data on a separate line, comma separated
Here is an example of a .csv file. You can open this in Excel!
Name, Age, Weight
Bob, 24, 123
Candice, 23, 122
David, 35, 222
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