How do I open a .RELS file?

Drop a .RELS file onto Analyser at https://lab.valjdakosta.com/ and it opens directly in your browser - no upload, no account and no software to install. Open lightweight document and markup formats as selectable page previews: Rich Text Format (RTF, control words stripped to readable prose), AbiWord (ABW), FictionBook e-books (FB2), Hangul HWPX, and MHTML web archives (the saved HTML rendered with scripts removed), plus markup and typesetting source - DITA, TEI, JATS journal XML, reStructuredText, AsciiDoc, Org-mode, Textile, TeX/LaTeX and BibTeX - shown with every page selectable and copyable. Also opens the small sidecar files unpacked from 3MF and OOXML bundles: OPC relationship XML (.rels) and MD5 checksum text (.md5).

Can I open a .RELS file online for free?

Yes. Analyser is a free online .RELS opener and viewer that runs entirely in your browser - your .RELS file never leaves your device, so there is nothing to upload and no software to install. It even works offline once installed.

.RELS file - what it is and how to open it online

Click here to analyse any file

Home › Formats › .RELSFull

What is a .RELS file?

.RELS is a file format that Analyser can open and analyse in your browser.

Did you know: Analyser handles .RELS alongside related formats such as .RTF, .ABW, .FB2 and more.
In Analyser's format library, .RELS sits in the Documents & e-books category.
Analyser opens .RELS files right in your browser - they are parsed and rendered on your device, never uploaded to a server.
What Analyser shows you: Open lightweight document and markup formats as selectable page previews: Rich Text Format (RTF, control words stripped to readable prose), AbiWord (ABW), FictionBook e-books (FB2), Hangul HWPX, and MHTML web archives (the saved HTML rendered with scripts removed), plus markup and typesetting source - DITA, TEI, JATS journal XML, reStructuredText, AsciiDoc, Org-mode, Textile, TeX/LaTeX and BibTeX - shown with every page selectable and copyable. Also opens the small sidecar files unpacked from 3MF and OOXML bundles: OPC relationship XML (.rels) and MD5 checksum text (.md5).
Open a .RELS file: Drag a .RELS file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
Related formats: .RTF · .ABW · .FB2 · .HWPX · .MHT · .MHTML · .DITA · .DITAMAP · .TEI · .JATS · .NXML · .RST · .ADOC · .AsciiDoc · .ORG · .Textile · .TeX · .LaTeX and more. See all supported file types.