I am opening a CSV file with Excel. I want excel to leave the data in certain fields alone and not convert it. Excel automatically converts the data value of "001" to the number "1". However, I need the sequence 001 to remain so I can concatenate it with another data value that has a similar sequence of 001 so that resulting data value is 001001 NOT 11. How do I prevent excel from autoconverting the data when it opens a csv file?