If you have 7-Zip installed, you can generate this report using these methods:
The file is a compressed archive created using the 7-Zip open-source archiver. A "detailed report" of such a file typically refers to a list of its internal contents, file sizes, and compression metrics. Content Summary workoutsheet.7z
: Open the file in the 7-Zip File Manager and click Info or simply view the columns for "Size" and "Packed Size". If you have 7-Zip installed, you can generate