das Archiv
archive
A place or building where important documents, records, or other historical materials are systematically collected and stored.
Für meine Recherche musste ich ins Stadtarchiv gehen.
For my research, I had to go to the city archive.

archive
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archive
A place or building where important documents, records, or other historical materials are systematically collected and stored.
Für meine Recherche musste ich ins Stadtarchiv gehen.
For my research, I had to go to the city archive.

The context reveals the meaning: If it is about a building or place, meaning m01 is intended. If it is about the documents themselves, it is m02. In computing, often in connection with 'entpacken' (to unzip/extract) or file names like '.zip', m03 is meant.
Das Stadtarchiv befindet sich im alten Rathaus.
The city archive is located in the old town hall.
To talk about archives, the preposition 'in' is important. Movement toward an archive is expressed with 'ins Archiv' (in + das), while being or working there is described with 'im Archiv' (in + dem).
Der Historiker geht jeden Tag ins Archiv, um Quellen zu studieren.
The historian goes to the archive every day to study sources.
In connection with the institution 'Archiv' (archive), verbs like 'recherchieren' (to research), 'lagern' (to be stored), 'aufbewahren' (to keep/store), or 'finden' (to find) are often used.
Alte Zeitungen werden im Archiv der Nationalbibliothek aufbewahrt.
Old newspapers are kept in the archive of the National Library.
When 'Archiv' (archive) means a computer file, typical verbs are 'herunterladen' (to download), 'erstellen' (to create), 'entpacken' (to unzip/extract), or 'extrahieren' (to extract).
Bitte laden Sie das ZIP-Archiv von unserer Webseite herunter.
Please download the ZIP archive from our website.
stock / inventory
'der Bestand' and 'das Archiv' can both have to do with stored materials. 'Bestand' means the entirety of the available objects or media, for example in a library, museum, or even an archive. The focus is on everything that is present. 'Archiv' means either the place where important documents are collected and stored, or those documents themselves. It is often about records, history, or administration. You can say: an archive has holdings, but not every collection or set of holdings is an archive.

Im Archiv sucht die Mitarbeiterin nach alten Verträgen.
In the archive, the employee is looking for old contracts.
Der Bestand des Museums umfasst auch viele alte Briefe.
The museum's collection also includes many old letters.