Extract text from obsolete documents (NVA)
To convert NVA documents to another format, you need NVA Reader or other E-Book software.
To convert other file formats to the "Proprietary eBook File" file type, you need software like NVA Reader or a similar tool.
The .nva file extension represents an NVA Document, a proprietary eBook format historically used to store digital publications, most notably medical-related textbooks. It was designed to replicate the exact structure and layout of printed books, functioning similarly to a standard PDF document.
These files were exclusively opened using NVA Reader (sometimes distributed as Le Duy NVA Reader Pro), developed by NVA Reader, Inc. Unfortunately, this software has been fully discontinued, making the format effectively obsolete. This presents a massive challenge for modern users. The .NVA format is a closed binary file that cannot be natively opened by standard e-readers like Apple Books, Amazon Kindle, or any modern web browser. Because the original software is dead, users are locked out of their purchased or stored digital books unless they find a technical workaround.
To regain access to your content, converting the .NVA file to standard formats like PDF, EPUB, or TXT is the only practical solution. A PDF conversion will best preserve the intended page layouts and complex medical diagrams, while converting to EPUB is better suited for reflowable text on mobile devices, though some complex print-replica formatting may be lost in the transition.
Because the .NVA format is proprietary and highly undocumented, standard online converters usually fail to process it entirely. Often, only the original discontinued software could properly read or export the data. If our analysis detects a supported underlying or embedded format, viewing or conversion to modern standards may still be possible.
Convert.Guru analyzes your NVA file, detects the exact format, and lets you read the text inside.
If you want to convert NVA file to PDF, EPUB, MOBI, AZW, AZW3, KFX, PRC, LIT, OPF, CBZ, CBR or CB7, you can use NVA Reader or similar software from the "Obsolete eBook Storage" category. In the File menu, look for Save As… or Export….
To convert FB2, MOBI, CBT, RTF, CB7, DOCX, DJVU, AZW, CBA, PDF, DOC or EPUB files to NVA, try NVA Reader or another comparable tool in the "Obsolete eBook Storage" 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 NVA converter.