Extract text from Virtual slide images (VSI)
To convert VSI Slide images to another format, you need Olympus cellSens or other Raster Image software.
To convert other file formats to the "Microscopy Image Format" file type, you need software like Olympus cellSens or a similar tool.
The .vsi file extension primarily represents an Olympus Virtual Slide Image. These are high-resolution, multi-layered images generated by digital slide scanners and microscopy software like Olympus cellSens. A secondary, less common use is the Visual Studio Content Installer, a legacy archive format used by Microsoft Visual Studio to distribute developer add-ons.
Microscopy .vsi files present significant handling challenges. They are proprietary and essentially complex, massive TIFF containers that store image pyramids. Because files often exceed several gigabytes, they require heavy scientific software like Olympus OlyVIA or the open-source ImageJ with the Bio-Formats plugin. You cannot natively open these files in a web browser, email them, or view them in standard image viewing applications.
To make this data usable outside the lab, conversion is mandatory. For scientific archiving and cross-platform analysis, convert to OME-TIFF. For presentations, web use, or quick sharing, convert to JPEG, PNG, or WebP. Note that converting to web formats will flatten the image pyramid and lose raw scientific metadata. If you have a Visual Studio .vsi file, it is structurally a ZIP archive; you can extract its contents to access the raw files.
Convert.Guru analyzes your VSI file, detects the exact format, and lets you read the text inside.
Users also converted ETS, VIS, ZIP, JPG, PNG, TIF, SCN, TXT, SGD, CDXML, PDF, INI and OPJU files.
If you want to convert VSI file to TIFF, JPG, SVS, ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA or CAB, you can use Olympus cellSens or similar software from the "Microscopy Image Storage" category. In the File menu, look for Save As… or Export….
To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to VSI, try Olympus cellSens or another comparable tool in the "Microscopy Image 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 VSI converter.