What type of file can you export with your report's performance data from the Performance Analyzer?

The Performance Analyzer tool in Power BI allows users to assess and optimize the performance of their reports. When exporting performance data from the Performance Analyzer, the relevant format is a .json file. The .json format is structured to facilitate the storage and exchange of data in a way that is both machine-readable and easy for developers to work with. This format is particularly suitable for performance data, as it enables detailed and complex datasets to be stored in a hierarchy, which helps in analyzing various aspects of report performance effectively.

The other file formats mentioned, such as .xlsx, .docx, and .ppt, are typically associated with spreadsheets, word processing documents, and presentation files, respectively. They do not support the intricacies required for handling raw performance data from Power BI reports, which is why they are not the correct choices in this context.