| Microsoft Open Office XML Relationships Format | |
| Microsoft | |
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RELS document files are used by Open Office software. This type of file defines how OOXML file parts should by joined together. The file uses XML format to define the relationships.
Open Office XML documents follow the ECMA-376 standard and use ZIP compression method. Each RELS file contains _rels folder that holds all the information regarding the relations between the elements. The file can store single .RELS or multiple .RELS, one for each XML part.
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