OTG is an OpenDocument graphics template - the same package as ODG, used as the basis for new drawings. OTG is the OpenDocument template behind LibreOffice Draw graphics. OTG is the OpenDocument drawing template defined by OASIS and standardised as ISO/IEC 26300, built from ZIP-compressed XML. Opening an .otg gives you a fresh drawing pre-loaded with its styles and page setup, the open-format equivalent of a Word or PowerPoint template. Under the hood a .OTG file is really a ZIP archive - rename it to .zip and you can browse the files inside.

How do I open a .OTG file?

Drop a .OTG file onto Analyser at https://analyser.valjdakosta.com/ and it opens directly in your browser - no upload, no account and no software to install. Open and read Microsoft Office documents - modern Word, Excel and PowerPoint (DOCX, XLSX, PPTX), their template, macro-enabled and slideshow variants (DOTX, XLTX, POTX, DOCM, XLSM, PPTM, PPSX), the binary Excel workbook (XLSB), and the legacy 97-2003 binaries (DOC, XLS, PPT) - plus the OpenDocument family in every shape: zipped and flat single-XML text, spreadsheets, presentations and graphics (ODT, ODS, ODP, ODG, FODT, FODS), templates (OTT, OTS, OTP, OTG), legacy StarOffice (SXW, SXC, SXD), and EPUB e-books, shown as page previews with selectable text, tables, sheets and slides. Excel workbooks (XLSX and its macro/template variants, plus the binary XLSB) and OpenDocument spreadsheets (ODS) additionally open in a full analysis workbench alongside the sheet preview - a virtualised grid with sort, filter, search and column tools, a group-by summary, and a chart builder - to explore the data itself, not just preview it.

Can I open a .OTG file online for free?

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

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

Analyse a .OTG file

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What is a .OTG file?

OTG is an OpenDocument graphics template - the same package as ODG, used as the basis for new drawings.

Did you know: OTG is the OpenDocument template behind LibreOffice Draw graphics.
OTG is the OpenDocument drawing template defined by OASIS and standardised as ISO/IEC 26300, built from ZIP-compressed XML.
Opening an .otg gives you a fresh drawing pre-loaded with its styles and page setup, the open-format equivalent of a Word or PowerPoint template.
Under the hood a .OTG file is really a ZIP archive - rename it to .zip and you can browse the files inside.
What Analyser shows you: Open and read Microsoft Office documents - modern Word, Excel and PowerPoint (DOCX, XLSX, PPTX), their template, macro-enabled and slideshow variants (DOTX, XLTX, POTX, DOCM, XLSM, PPTM, PPSX), the binary Excel workbook (XLSB), and the legacy 97-2003 binaries (DOC, XLS, PPT) - plus the OpenDocument family in every shape: zipped and flat single-XML text, spreadsheets, presentations and graphics (ODT, ODS, ODP, ODG, FODT, FODS), templates (OTT, OTS, OTP, OTG), legacy StarOffice (SXW, SXC, SXD), and EPUB e-books, shown as page previews with selectable text, tables, sheets and slides. Excel workbooks (XLSX and its macro/template variants, plus the binary XLSB) and OpenDocument spreadsheets (ODS) additionally open in a full analysis workbench alongside the sheet preview - a virtualised grid with sort, filter, search and column tools, a group-by summary, and a chart builder - to explore the data itself, not just preview it.
Open a .OTG file: Drag a .OTG 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: .DOCX · .DOCM · .DOTX · .DOTM · .XLSX · .XLSB · .XLSM · .XLTX · .XLTM · .PPTX · .PPTM · .PPSX · .PPSM · .POTX · .POTM · .ODT · .OTT · .FODT and more. See all supported file types.