Click the "Select File" button above, and choose your MWD file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert MWD to another file type
The converter easily converts your MWD file to various formats - free and online. No Word or extra software needed.
MWD to TXT
MWD to RTF
MWD to DOC
MWD to DOCX
MWD to ODT
Convert a file to MWD
The converter also works in reverse, so you can convert other Text formats to MWD with high quality output.
About MWD files
The .MWD extension serves two distinct, incompatible ecosystems, often leading to confusion during file recovery. Most commonly, it represents a legacy word processing document created by Mariner Write, a streamlined alternative to Microsoft Word popular on older macOS systems. These files are proprietary wrappers often containing Rich Text Format (RTF) data, but they cannot be opened directly by modern processors like Pages or Word without conversion. The second variation is a technical drawing file from Mascad, a niche Windows-based CAD tool. The friction here is high: Mariner Write is largely obsolete on modern Apple Silicon, and Mascad files are unsupported by industry standards like AutoCAD. Users typically need to convert these files to retrieve trapped text or vector data. For Mariner Write documents, converting to DOCX preserves formatting for editing, while PDF is ideal for archiving. For Mascad drawings, the target should be DXF or PDF to ensure the technical diagrams are viewable without the original legacy software.
Use Convert.Guru to open and convert your MWD file.
If you want to convert MWD file to PAGES, TEX, LATEX, MD, MARKDOWN, LOG or NFO, you can use Mariner Write or similar software from the "Word Processing Document" 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 MWD, try Mariner Write or another comparable tool in the "Word Processing Document" category.
The MWD 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 MWD converter.