Click the "Select File" button above, and choose your EIO file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert EIO to another file type
To convert EIO files to another format, you need Yozo Office or other Data software.
Convert a file to EIO
To convert other file formats to the "Proprietary Office Document" file type, you need software like Yozo Office or a similar tool.
About EIO files
The .eio file format is primarily a proprietary, and often encrypted, document binder created by Evermore Integrated Office (now officially known as Yozo Office). This unique software suite bundles word processing documents, spreadsheets, and presentations into one single consolidated file. A secondary, distinct use for the .eio extension is for building energy simulation output files generated by the EnergyPlus engineering software. The major disadvantage of the Evermore .EIO format is its highly closed ecosystem. Standard office suites like Microsoft Word or LibreOffice cannot natively open or parse the unified binder structure. If the file is encrypted and you lack the password, the data is permanently locked. You are essentially trapped in the Yozo Office ecosystem, which makes sharing files with external clients or colleagues extremely difficult. Users typically need to convert .eio files to standard industry formats like DOCX, XLSX, or PDF to guarantee accessibility. For EnergyPlus simulation outputs, extracting the data to TXT or CSV is the primary goal. Because the Evermore format is closed and proprietary, standard online converters universally fail to process it. Usually, only the original Yozo Office software can properly read or export the data. We can inspect the file, reveal internal text, and if our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your EIO file, detects the exact format, and lets you read the text inside.
If you want to convert EIO file to TXT, RTF, DOC, DOCX, ODT, PAGES, TEX, LATEX, MD, MARKDOWN, LOG or NFO, you can use Yozo Office or similar software from the "Encrypted Office Document Binder" category. In the File menu, look for Save As… or Export….
To convert PDF, DOC, ASC, TODO, NFO, MEMO, README, DOCX, JPG, TXT, NOTE or RTF files to EIO, try Yozo Office or another comparable tool in the "Encrypted Office Document Binder" category.
The EIO Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our EIO converter.