Split file or compressed file from a multi-volume archive (part 58)
File type: Archive and compressed file
A 058 file extension is related to split file or compressed file from a multi-volume archive (part 58).
Found 2 different file type records with the same 058 filename suffix.
File type category:
Archive and compressed file
Date updated: July 19, 2025
The 058 file extension is generally used for split files. A part of larger file split using splitter software, such us HJSplit, WellTek 001 File Joiner & Splitter, SplitJoin or File Managers, such as Total Commander.
It is also associated with several archivers or compression tools, which are using, or did use in the past, the 058 file extension for its multi-volume files or archives, such as Winrar or 7-Zip.
In case of split files, you will need to merge them first with the use of the splitting/joining software tool, before you can open or work with them. If the files are compressed multi-volume archives, you will have to extract the first one and it will automatically continue to extract all the parts. In either case, you will need ALL the parts to access the original content.
Use WinRAR compression utility to extract archive contents and start with first archive (first archive file has mostly file extension rar or 000 or 001).
Extract archive ant then compress to another archive file format (like .zip etc.)
File type category:
Various data file
Date updated: September 23, 2026
Winfunktion Mathematik was a German mathematics program released in 1998. In version 8.0, the 058 file extension was used for files containing data for Julia set mathematical fractals.
Winfunktion Mathematik later reached version 18, but it is not confirmed whether current versions still use 058 files for Julia fractals. The format is therefore primarily associated with the older version 8.0 software.
Open a 058 file with Winfunktion Mathematik Plus on Microsoft Windows. Version 8.0 is the version associated with this Julia fractal format.
No specific conversion method is documented for Winfunktion Mathematik 058 files. If Winfunktion Mathematik Plus can open the file, use any export options provided by the program.
Software applications that handle other tasks involving 058 files:
Microsoft Windows
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