Top4

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File Format
Name Top4
Ontology
Extension(s) .to4, .t4
Released ≤1996

Top4 (also written Top 4) is a file compression utility for DOS, and associated file format. It was developed by Tobias Svensson / Topologi Software.

Contents

Identifiers

For v1.03 at least, the suggested file extension is .to4.

The v1.03 package includes a self-extracting executable maker, TOP4EXE v1.02, whose example commands use the extension .t4 for Top4 format.

Identification

Files begin with bytes 'T' '4' 0x1a.

See also

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