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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=Top4</id>
		<title>Top4 - Revision history</title>
		<link rel="self" type="application/atom+xml" href="http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=Top4"/>
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		<updated>2026-05-08T06:29:05Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Top4&amp;diff=40148&amp;oldid=prev</id>
		<title>Jsummers at 15:39, 2 July 2021</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Top4&amp;diff=40148&amp;oldid=prev"/>
				<updated>2021-07-02T15:39:56Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
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			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 15:39, 2 July 2021&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=≤1996&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=≤1996&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''Top4''' (also written '''Top 4''') is a file compression utility for DOS, and associated file format. It was developed &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;by &lt;/del&gt;by Tobias Svensson / Topologi Software.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''Top4''' (also written '''Top 4''') is a file compression utility for DOS, and associated file format. It was developed by Tobias Svensson / Topologi Software.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Identifiers ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Identifiers ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Top4&amp;diff=40146&amp;oldid=prev</id>
		<title>Jsummers at 15:38, 2 July 2021</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Top4&amp;diff=40146&amp;oldid=prev"/>
				<updated>2021-07-02T15:38:08Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
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				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 15:38, 2 July 2021&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 14:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 14:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Identification ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Identification ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Files begin with bytes {{magic|'T' '4' 0x1a}}.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Files begin with bytes {{magic|'T' '4' 0x1a}}.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;== See also ==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [[ASD Archiver]] - Same author&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Software ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Software ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 19:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Links ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Links ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://web.archive.org/web/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;20020420220541&lt;/del&gt;/http://&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;hem1&lt;/del&gt;.passagen.se/svto/ &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Author&lt;/del&gt;'s website (&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;2002 &lt;/del&gt;archive)]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://web.archive.org/web/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;20030803170629&lt;/ins&gt;/http://&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;hem&lt;/ins&gt;.passagen.se/svto/ &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Developer&lt;/ins&gt;'s website (&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;2003 &lt;/ins&gt;archive)]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Top4&amp;diff=40136&amp;oldid=prev</id>
		<title>Jsummers: Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Compression |extensions={{ext|to4}}, {{ext|t4}} |released=≤1996 }} '''Top4''' (also written '''Top 4''') is a file compression ut...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Top4&amp;diff=40136&amp;oldid=prev"/>
				<updated>2021-07-02T14:48:54Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=electronic |subcat=Compression |extensions={{ext|to4}}, {{ext|t4}} |released=≤1996 }} &amp;#039;&amp;#039;&amp;#039;Top4&amp;#039;&amp;#039;&amp;#039; (also written &amp;#039;&amp;#039;&amp;#039;Top 4&amp;#039;&amp;#039;&amp;#039;) is a file compression ut...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{FormatInfo&lt;br /&gt;
|formattype=electronic&lt;br /&gt;
|subcat=Compression&lt;br /&gt;
|extensions={{ext|to4}}, {{ext|t4}}&lt;br /&gt;
|released=≤1996&lt;br /&gt;
}}&lt;br /&gt;
'''Top4''' (also written '''Top 4''') is a file compression utility for DOS, and associated file format. It was developed by by Tobias Svensson / Topologi Software.&lt;br /&gt;
&lt;br /&gt;
== Identifiers ==&lt;br /&gt;
For v1.03 at least, the suggested file extension is '''.to4'''.&lt;br /&gt;
&lt;br /&gt;
The v1.03 package includes a self-extracting executable maker, TOP4EXE v1.02, whose example commands use the extension '''.t4''' for Top4 format.&lt;br /&gt;
&lt;br /&gt;
== Identification ==&lt;br /&gt;
Files begin with bytes {{magic|'T' '4' 0x1a}}.&lt;br /&gt;
&lt;br /&gt;
== Software ==&lt;br /&gt;
* [{{SACFTPURL|pack|top4.zip}} Top4 v1.03]&lt;br /&gt;
&lt;br /&gt;
== Links ==&lt;br /&gt;
* [https://web.archive.org/web/20020420220541/http://hem1.passagen.se/svto/ Author's website (2002 archive)]&lt;/div&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

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