Dsf.7z

Standard for ZIP/GZip; faster but offers lower compression ratios than LZMA. Potential Issues DSF Usage In X-Plane

Default; provides high compression and fast decompression for most data.

If a .dsf file is itself a 7z-compressed archive (sometimes indicated by a .dsf.7z extension or simply renamed), you can rename it back to .7z to extract it. : DSF.7z

A standard method based on the BWT algorithm, offering a balance of speed and ratio.

When creating new scenery, developers use DSFTool to compile text files back into the DSF format. Standard for ZIP/GZip; faster but offers lower compression

When putting together a .7z archive for DSF data, you might encounter several compression methods within the Add to Archive dialog: Best Use Case

A high-compression file format. Using 7-Zip on DSF files can significantly reduce their size, which is critical for large scenery packages. How to Work with DSF.7z Files : A standard method based on the BWT

To access the raw scenery data, you must extract the .7z archive. This can be done by right-clicking the file and selecting "Extract" from the 7-Zip context menu.