What is the default line spacing for most word processing software?

The default line spacing for most word processing software is typically set to 1.15 or single spacing. This choice provides a clean and easily readable format, which is suitable for various types of documents including essays, reports, and professional correspondence. Single spacing allows for compact text that is easy to read without appearing too crowded. The slight increase to 1.15 in some software struck a balance between readability and space efficiency, making it a popular choice for the default setting. This format is particularly useful in creating documents that require a professional appearance while retaining clarity in content presentation. Additionally, this setting facilitates easier editing and reviewing of text, as the proximity of lines aids in comparing and making adjustments.