Q&A Monday: LZMA File

File Compression


I received a file from a coworker that has a LZMA file type with a large sum of data, and I don’t know how to open it.  Please help!

Kevin Knight
South Dakota

LZMA is a compressed file, something like the ZIP compression that most of us are generally familiar with. It’s used as a way to group files together and compress them causing their total size to diminish.  Now depending on your operating system, you need to choose the right software:

Windows: 7 Zip


Mac OS:  The Unarchiver


Both of these are software packages that I have used, and Unarchiver also has a Windows version as well, but I’ve just grown more comfortable with 7 Zip on Windows machines.

If you have any questions that you want Jim to answer, from business servers to home computers, drop him a line at me@jimguckin.com, and he’ll try to answer your question. Check back every Monday for a new Question and Answer session, and during the rest of the week for his other technical insights.

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