/usr/share/EMBOSS/test/data/test3.mega is in emboss-test 6.4.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | #mega
TITLE: Noninterleaved sequence data
#mouse AATTTTTACCCCGGGGGG
#human AACCCTTACCCCGGGGGG
#cat AATTTTTACAAAGGGGGG
#mouse AGGGGGGACCCCGG
#human AGGGGGGACCCCGG
#cat AGGGGGGACCCCGG
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