Click the "Select File" button above, and choose your RW3 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert RW3 to another file type
To convert RW3 data files to another format, you need Regressi or other Data software.
Convert a file to RW3
To convert other file formats to the "Scientific Data Analysis File" file type, you need software like Regressi or a similar tool.
About RW3 files
A .RW3 file primarily functions as a Scientific Data Analysis file created by Regressi, an educational physics and chemistry software heavily used in academic environments. It contains experimental datasets, computed variables, and graphical models. Less commonly, it serves as a legacy RapidWeaver 3 Site File originally developed by Realmac Software for macOS web design.
The .RW3 format is highly restrictive and notoriously frustrating outside its native environment. Regressi files require the specific Windows or macOS desktop application to open, making them impossible to view on mobile devices or share easily with colleagues who do not have the software installed. The RapidWeaver 3 variant is effectively obsolete, relying on software architectures unsupported by modern Apple computers.
To make this data accessible, you must extract or convert it. For scientific data analysis, convert Regressi .RW3 to CSV or XLSX to manipulate the raw numbers in Microsoft Excel or Google Sheets. For sharing visual graphs, convert to PDF or PNG.
Convert.Guru analyzes your RW3 file, detects the exact format, and lets you read the text inside.
If you want to convert RW3 file to HTML, HTM, CSS, JS, PHP, ASP, ASPX, JSP, JSPX, PY, RB or PL, you can use Regressi or similar software from the "Scientific Data Analysis Storage" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to RW3, try Regressi or another comparable tool in the "Scientific Data Analysis Storage" category.
The RW3 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 RW3 converter.