Liang Sanshi is a book author about whom little public information is available; the library currently holds only one work by this author, Excel Data Analysis from Beginner to Mastery. Judging from the title and the common category of software learning, the book is aimed at learners who wish to use Excel for data processing and analysis, and it belongs to the practical how-to genre. The author organizes the content around specific software functions and operating procedures, guiding readers step by step from the basics toward the fundamental methods of organizing, analyzing, and presenting data, in a clear and approachable instructional style. Because no reliable records of birth and death dates, nationality, or professional experience have been found, the author's personal background cannot be supplied, and readers may regard Liang Sanshi as a compiler focused on office software applications. In terms of the existing work, the writing serves the clear goal of introducing and improving software skills and is suitable for ordinary readers who need to study Excel data analysis systematically.