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.
Clopidogrel is used to prevent strokes and heart attacks in patients at risk for these problems. Clopidogrel is in a class of medications called antiplatelet drugs. It works by helping to prevent harmful blood clots that may cause heart attacks or strokes.