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File collections containing a large number of files or subfolders should be published as uncompressed *.zip files on Windows computers and as *.tar files on MacIntosh computers (see Preparing your files). Since Mac computers. Since uncompressed *.zip and *.tar files are well standardised formats, they can be unpacked in the long term. However, for the long-term use of your file collection, the file formats within these container files must also be usable in the long term. We can offer only limited services to validate and curate the contents of *.zip and *.tar files.
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