Correspondence Metadata Interchange Format file of J. R. R. Tolkien’s Letters edited by Humphrey Carpenter and Christopher Tolkien.
Until near completion, the data resides in letters.csv, structured for the csv2cmi conversion tool by Klaus Rettinghaus (SAW Leipzig). Editing may switch to XML later.
There will be little or no work from my part on this. Pull requests are very welcome! If you wish to be credited by name for your contribution, please start a list of contributors below.
The data is published under the CC BY 4.0 licence.