RETURN ADDRESS: Fill in this file with the return address you wish to appear on bills. If you're using letterhead, erase all the lines in this file and save the blank file. SIGNATURE BLOCK: Each of your timekeepers should have his own signature block file, so that his signature block will appear on bills sent to clients for whom he's responsible. OPENING/CLOSING: Compose any opening or closing paragraphs you wish. They will appear on bills just as you type them here. The "Balance-Due-Closing" file is used for billing cases for which you're owed money. The "Credit-Balance-Closing" is used for cases that are paid up. If you need insert blank lines at the end of a file, make sure that the last such line has about 70 blank spaces. Actually use the space bar to insert these spaces; otherwise they won't be found.