Extract text from II files
To convert your II file to another format, you need GCC or other Developer software.
To convert other file formats to the "Source Code" file type, you need software like GCC or a similar tool.
A .II file is an intermediate software development file generated by C++ preprocessors, most notably the GNU Compiler Collection (GCC). It represents the state of C++ source code after the preprocessor has run but before actual compilation occurs. This means all #include headers have been recursively inserted into the file, macros have been expanded, and conditional compilation directives (like #ifdef) have been resolved.
Because .II files contain the entire expanded source tree, they present significant friction for standard editing. A 50-line .cpp file can result in a 50,000-line .II file once system headers are included, making them unwieldy for humans to read and leading to slow performance in lightweight text editors. They are also tightly coupled to the specific machine environment where they were generated (containing absolute system paths). For debugging or archiving, users often need to convert these massive raw text dumps into more manageable formats. Converting to TXT ensures the code can be opened in any basic viewer without IDE lag. Converting to PDF is useful for creating a static snapshot of the exact build state for documentation or bug reporting. For developers trying to reverse-engineer the build process, renaming or converting back to CPP allows for syntax highlighting, though recompilation may require the original environment.
Convert.Guru analyzes your II file, detects the exact format, and lets you read the text inside.
Users also converted IDX, DAV, C, DWARF and FASTQ files.
If you want to convert II file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use GCC or similar software from the "Intermediate Source Code" 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 II, try GCC or another comparable tool in the "Intermediate Source Code" category.
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 II converter.