BM_ Converter

Extract text from Compressed bitmap images (BM_)


Drop or upload your .BM_ file
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How to extract text from your BM_ file

  1. Click the "Select File" button above, and choose your BM_ file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert BM_ to another file type

To convert BM_ Bitmaps to another format, you need Microsoft Windows or other Compressed software.

Convert a file to BM_

To convert other file formats to the "Compressed Bitmap Image" file type, you need software like Microsoft Windows or a similar tool.


About BM_ files

A .bm_ file is essentially a standard BMP image that has been compressed using Microsoft's LZ77 compression algorithm, a technique prevalent in older Windows installation media and driver packages. The underscore at the end of the extension is a convention indicating that the file is incomplete until expanded; the original extension was BMP, but the final 'P' was replaced by the underscore to signify its compressed state. Because this is an installation artifact rather than a ready-to-use image, standard viewers like Microsoft Photos or Adobe Photoshop cannot open it directly, resulting in the frustrating "Windows cannot open this file" error. To view the content, the file must typically be decompressed using the command-line utility expand.exe or specialized archivers like 7-Zip. For users looking to bypass the command line or archival hurdles, the most pragmatic solution is converting the file directly to a usable image format like JPG for web use or standard BMP for editing. In rare cases, this extension may also refer to game data from Catherine by Atlus, which requires specific extraction tools.

Convert.Guru analyzes your BM_ file, detects the exact format, and lets you read the text inside.

Users also converted LBM, BM and BBM files.


FAQ

If you want to convert BM_ file to , you can use Microsoft Windows or similar software from the "Compressed Installation Image" category. In the File menu, look for Save As… or Export….

To convert files to BM_, try Microsoft Windows or another comparable tool in the "Compressed Installation Image" category.



The BM_ 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 BM_ converter.