Click the "Select File" button above, and choose your DII file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert DII to another file type
To convert DII load files to another format, you need Laserfiche or other Data software.
Convert a file to DII
To convert other file formats to the "Document Index File" file type, you need software like Laserfiche or a similar tool.
About DII files
The .DII file is an eDiscovery image load file or Document Index File heavily utilized in litigation support and digital archiving. It functions as a structured script that maps individual document images - typically multi-page TIFF or PDF files - to corresponding database records within legal review software.
These index files are primarily generated and processed by platforms like IPRO Summation, Laserfiche, and Concordance. The file dictates critical document boundaries, metadata mapping, and Bates numbering sequences required for massive legal evidence databases.
The major disadvantage of the .DII format is its rigid, proprietary syntax. It acts merely as a pointer system relying on exact relative or absolute file paths. If the referenced image directories are moved, renamed, or missing, the .DII file will trigger immediate load errors. Furthermore, the format locks users into expensive, specialized eDiscovery software subscriptions just to view the database structure.
Legal professionals frequently need to convert .DII files into universal load formats like Concordance DAT, Opticon OPT, or standard CSV and TXT to migrate case data to modern review platforms. During this conversion, proprietary formatting tags might be lost, but the critical relational data and file paths are preserved.
This file format is difficult to open or convert seamlessly because of its reliance on vendor-specific text delimiters and complex pathing rules. Often, only the original software can properly read or export the data natively. However, just drag and drop your file to identify the format, view it, and convert it when possible. convert.guru can inspect the internal content and show the raw text. If our analysis detects the underlying structural data, viewing or conversion to standard text formats may still be possible.
Convert.Guru analyzes your DII file, detects the exact format, and lets you read the text inside.
Users also converted DLL, PNG, EXE, SE3 and JPG files.
FAQ
If you want to convert DII file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Laserfiche or similar software from the "eDiscovery Image Load File" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to DII, try Laserfiche or another comparable tool in the "eDiscovery Image Load File" category.
The DII 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 DII converter.