The purpose of the manuscript on diskette is to provide the typesetter with your chapter in an easily handled form. If you have not followed the guidelines, your manuscript on disk may be returned for revision, at the discretion of the typesetter. Use common fonts such as Times, Symbol, Helvetica, Arial. Use the tab key to indent, insert spaces, or to align tables. Absolutely, never use spaces for this purpose.
Spaces are very difficult to work with.
If you are using Word or WordPerfect, you may use the table feature in those programs to create the table. Do not use headers, footers, and page numbers on your diskette version. Do not assign a style sheet or styles to your manuscript. The typesetter will use a master style sheet that will take care of this. If you do not know what a style sheet is, don't worry, you're not using one.