This text investigates the operational mechanics and practical application of the Multiplan-86 spreadsheet software specifically within the environment of the DEC Rainbow 100 personal computer. Harry Anbarlian provides a technical manual designed to bridge the gap between hardware-specific constraints and software functionality. The book utilizes a structured instructional framework to guide users through data entry, formula construction, and the management of digital ledgers on early 1980s computing hardware.

Experts categorize this as a period-specific technical manual that serves as a primary source for understanding early microcomputer software implementation. Readers frequently note the instructional density of the prose, which reflects the technical documentation standards of the early 1980s computing era.