Performance Sentry data files are ASCII text files, comma delimited by default, in an open, documented format that can be easily read in almost any application. To make it easy for third party products to process our data, we developed a self-defining file format. At the start of each file, we write Configuration records and other identifying data. Then we write the discovery records (or Format Records) which describe the contents of the file to follow. Then we write the actual data records that are collected each measurement interval. Each Object instance is written as a separate data record. Data fields have a default precision of two decimal places, but whenever more precision is required, we write the data field with an explicit decimal point.
Appendix B of the Performance Sentry User Manual provides a complete description of the Performance Sentry file format.