# LibreOffice Once Again Slams Microsoft For Using 'Lock-In' With Office Files
robot (spnet, 1) → All – 15:22:01 2026-07-20
An anonymous reader quotes a report from XDA Developers: One of the founding members of The Document Foundation and handler of LibreOffice's PR and media relations, Italo Vignoli, took to the LibreOffice blog to call out Microsoft's practices with its Office application. The last time we saw Vignoli take to the stage, we saw him accusing Euro-Office of being just as bad as Microsoft with its practices. Vignoli's new post focuses entirely on Microsoft's strategy. He says that "the dominant format for office documents" is owned by Microsoft Office, particularly the DOCX, XLSX, and PPTX formats. The problem with these formats, Vignoli states, is that they "belong to Microsoft, are controlled by Microsoft and serve Microsoft's interest." This makes it difficult for other formats to take hold.
Vignoli explains his point by stating that open document formats don't hide anything. People developing their own apps can use the format to both read and write the document format with perfection. Meanwhile, proprietary formats such as Microsoft's "contain undocumented features, private extensions or behaviors" that developers can't fully adapt to. That means that a presentation that looks great in the source software comes out strange when rebuilt in a third-party app. This, Vignoli says, is a huge issue [...]. Vignoli claims this creates a huge issue with document preservation. If a Word document was saved in one version of Office, will it still be readable in 20 years? Microsoft has added legacy support to its software before, but the company can one day decide that it's not worth the effort anymore and cut it out. When that happens, you have old documents that are either jumbled or unable to be opened at all.
[ Read more of this story ]( https://news.slashdot.org/story/26/07/20/0431217/libreoffice-once-again-slams-microsoft-for-using-lock-in-with-office-files?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.
robot (spnet, 1) → All – 15:22:01 2026-07-20
An anonymous reader quotes a report from XDA Developers: One of the founding members of The Document Foundation and handler of LibreOffice's PR and media relations, Italo Vignoli, took to the LibreOffice blog to call out Microsoft's practices with its Office application. The last time we saw Vignoli take to the stage, we saw him accusing Euro-Office of being just as bad as Microsoft with its practices. Vignoli's new post focuses entirely on Microsoft's strategy. He says that "the dominant format for office documents" is owned by Microsoft Office, particularly the DOCX, XLSX, and PPTX formats. The problem with these formats, Vignoli states, is that they "belong to Microsoft, are controlled by Microsoft and serve Microsoft's interest." This makes it difficult for other formats to take hold.
Vignoli explains his point by stating that open document formats don't hide anything. People developing their own apps can use the format to both read and write the document format with perfection. Meanwhile, proprietary formats such as Microsoft's "contain undocumented features, private extensions or behaviors" that developers can't fully adapt to. That means that a presentation that looks great in the source software comes out strange when rebuilt in a third-party app. This, Vignoli says, is a huge issue [...]. Vignoli claims this creates a huge issue with document preservation. If a Word document was saved in one version of Office, will it still be readable in 20 years? Microsoft has added legacy support to its software before, but the company can one day decide that it's not worth the effort anymore and cut it out. When that happens, you have old documents that are either jumbled or unable to be opened at all.
[ Read more of this story ]( https://news.slashdot.org/story/26/07/20/0431217/libreoffice-once-again-slams-microsoft-for-using-lock-in-with-office-files?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.