xz is a lossless data compression program and file format which incorporates the LZMA/LZMA2 compression algorithms. One can think of xz as a stripped-down version of the 7-Zip program. xz has its own file format rather than the .7z format used by 7-Zip (which lacks support for Unix-like file system metadata).
In general, an ePortfolio is a purposeful collection of information and digital artifacts that demonstrates development or evidences learning outcomes, skills or competencies.
A carport is a covered parking space, usually attached to the house, that is not completely enclosed by walls. There are two improvement projects that involve carports. One is to convert an existing carport into storage space or living space by enclosing it. The other is to build a new carport.