Report writing is a type of writing that is used to communicate information about an event, situation, or other occurrence. It is commonly used in academic, business, and government settings to document and analyze data and to make recommendations based on that data. There are several key elements of a report writing format that should be included in order to ensure that the report is effective and informative.

Title
The title of the report should be clear and concise, and it should accurately reflect the content of the report.

Introduction
The introduction of the report should provide background information on the topic and should clearly state the purpose of the report. It should also provide an overview of the main points that will be covered in the report.

Body
The body of the report should be divided into sections and sub-sections, each of which should be clearly labeled with headings and subheadings. The body should provide a detailed analysis of the data and should present the findings in a logical and organized manner.

Conclusion
The conclusion of the report should summarize the main findings and should provide recommendations based on those findings. It should also include any limitations or constraints that may have impacted the research.

References
Any sources that were used in the research should be properly cited in the report. This includes both primary and secondary sources.

Appendix
Any additional information that is relevant to the report but that does not fit within the body of the report should be included in an appendix. This may include charts, graphs, or other visual aids.

Overall, a report writing format should be clear, concise, and well-organized. It should provide a thorough analysis of the data and should present the findings in a way that is easy to understand. By following these guidelines, you can ensure that your report is effective and informative.