You can change their names and they are sorted by use. Desktop wordprocessors like Microsoft Word are ill-suited for this. The \bf command for bold was used because vectors are often connoted with darker font than non-vectors. Note: your filename must end in .tex. As an example, let’s edit myFile01.tex to create a document that possesses: Multiple section headings Text formating like bold and italic A bibliography reference Note the lines between %Start your text and %Stop your text in myFile01.tex below.