additions to file format lists?

[7yl4r]

I have a few thoughts/opinions regarding the data file formats list. In no particular order:

1. change "containers" to "file archives"
2. can we add notes on compression to list of zip/gzip/tar?
   • especially for .tar, .tar.gz and .tar.bz2 are common and good practice
3. "databases" seems too generic.
4. what about .json and .sql for databases?
5. metadata file formats should be mentioned here?
6. what about notes for overall directory structure for "containers"("file archives")?
   • README file recommendation?
7. "text" section should not include .xml and should include .txt, .md, (maybe) .rtf?
8. what about "spreadsheets"? I would like to see an explicit recommendation to use an open format instead of proprietary .xlsx (eg .odf)
9. "still images" should include a vector format (.svg)
10. "still images" might include a multi-layer composited image format (.xcf?)

[7yl4r]

related: at the bottom in the "additional data docs" section:
11. These file format suggestions might be moved to the data file formats list.
12. image/pictures should include .png and .svg
* also note that these are the same recommendations as the "still images" ones