4d-database

问题 A client of mime has an old program running on 4D. I am not familiar with this format, but I have 4 files; a .4DC , .rsr , .4DD and one .4DR file. I suspect that the data is in the .4DD file. How can I extract the data? 回答1: If the 4D application does not have an export function in it then you need to go to the developer to open up the data. Data in 4D applications is accessible only to the application that created the data file. This allows self contained applications to remain proprietary.

问题 I trying to open (using 4d v12) the database with the extension .4dc (in addition there are files with extensions .4dd and .4dr). The result is an error: You cannot convert compiled database. Perhaps this is an old version of the database, but I could not find anything that could convert it to a newer version. My goal is to obtain information from the database. But the problem is that I'm not good at 4d. And I don't know how to open the .4DC as part of an application. Please help me if you