What is an .edt file?

Question

In a Chinese dictionary software bundle, which I could not get to run on Linux with wine, I found .dbf and .edt files [originals]:

• chengyu.dbf
chengyu.edt
• bsv.dbf
bsv.edt

I understand the .dbf files are dBase files (their tables seemed to contain the entries), however chengyu.dbf did not have headwords.

What are the .edt files for?

Answer 1

The file extension .edt is short for edit, so the .edt files are the edits [changes] of the .dbf files.