Frequently Asked Questions
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Question:
What does it mean when my data has a .tar.gz or .tgz extension?
Answer:
Your data will need to be unzipped and untarred before you can use the data files. UNIX systems should have the "gunzip" and "tar" commands available for uncompressing and accessing the data. For PC users, free software can be downloaded from the web; unfortunately we can not recommend any type of software. Check your PC, you may already have appropriate software.