1. File/Export

2. Make your changes to the DESC column

3. File/Import

Thank you very much!  A few other questions please:

1.  Is it advisable to do the import when nobody else is using our Sage 300 ERP, or does it make no difference?

2.  Although I don't plan to do this, would it still work fine if I deleted all the irrelevant columns before changing and importing?  If I just kept the first column, which is presumably the key, and then the column I changed, and made sure to keep the headers, would that actually work or not? 

Or is it going to ask me an append/update/replace question when I do the import?

Thank you very much!  A few other questions please:

1.  Is it advisable to do the import when nobody else is using our Sage 300 ERP, or does it make no difference?

2.  Although I don't plan to do this, would it still work fine if I deleted all the irrelevant columns before changing and importing?  If I just kept the first column, which is presumably the key, and then the column I changed, and made sure to keep the headers, would that actually work or not? 

Or is it going to ask me an append/update/replace question when I do the import?

1. No difference

2. Just change the DESC column and import, don't mess with the columns.  Don't overthink this process.