Supplementary materials are helpful to promote the progress in this research field. By showing the research details and specific data results in supplementary materials, the later researchers can understand the details of the research work more comprehensively, evaluate the research work more completely, quickly follow up the research situation in this field, and promote the progress of this research field. For example, in the face of the global COVID-19 epidemic, scientists have a more comprehensive and in-depth understanding of COVID-19 by enjoying the specific data results of various studies. This has greatly promoted the progress of related research and helped mankind overcome the epidemic as soon as possible.

Auxiliary materials can improve the exposure of paper. Most publishing houses, such as Nature, will choose to open source the teaching materials, that is, readers can get the content of teaching materials online for free, which will attract readers' interest and undoubtedly lead readers to the main body of the paper, thus making it easier for everyone to find your paper.