iso The archive file format known as ISO is a disk image format. It is the popular archiving technology used to archive the contents of every sector of an optical disc or file system. Compatible disk imaging software is often required to author ISO images from an optical disk or file directory. Reading ISO images can then be done with the same disk imaging software either by directly opening the image file or by mounting the image file onto a virtual disk drive typically created by the imaging software. Archived ISO files can be easily distributed on today's high speed internetworks without limitation or as self-contained files via portable hard drives.
txz The TXZ file extension is typically found in archive files which are created using a combination of TAR and the XZ utilities. TXZ files contain multiple files which are first archived using Tar and later compressed using the technology of XZ compression. TXZ files are known to be smaller in comparison to TGZ files. From a more basic perspective, XZ utilities compress TAR archive files just like how GZ utilities compress various TAR archives, the only difference being in the compression ratios and the resulting file sizes after compression.