wki to csv conversion is often searched by users that are looking for a way to recover data from very old spreadsheets from Lotus 1-2-3, in this particular case .wki files come from version 2 of the software.
Modern versions of Excel or similar tools can often brute-import raw data from older files and assign it to cells based on user input, but it often works poorly for very old formats.
The best way is actually to find an old version of Lotus 1-2-3 on one of the abandonware websites (for example, the WinWorld library), download it, and use it to export the data. Version 2.x of Lotus 1-2-3 was for MS-DOS, so a virtual machine will be needed.
Updated: February 14, 2024