: Use a tool like WinRAR or 7-Zip . You only need to right-click on the first part ( part01 ) and select "Extract Here"; the software will automatically pull data from part21 as it goes.
: The "otomi-games.com" prefix suggests the file was hosted on or indexed by a community-driven site for visual novels and dating sims. otomi-games.com_AI794HTU.part21.rar
: If you get a "Checksum Error" during extraction, part21 or another segment is likely corrupted and needs to be re-downloaded. : Use a tool like WinRAR or 7-Zip
The specific file otomi-games.com_AI794HTU.part21.rar appears to be a fragmented archive part from a site specializing in —story-based video games targeted at women that usually involve romantic relationships. Content Analysis Based on the naming convention, : If you get a "Checksum Error" during
: You must have every preceding part (part01 through part20) and any subsequent parts in the same folder.