: You cannot open "part20" by itself. You must have all preceding parts ( part01 through part19 ) and any subsequent parts in the same folder.
: Use an extraction tool like WinRAR or 7-Zip . sc23194-FH5PEv1517253.part20.rar
: Select "Extract Here" or "Extract to [Folder Name]" . The software will automatically link all parts (including your part 20) to reconstruct the original full file. 4. Potential Issues : You cannot open "part20" by itself