XLSB to OTB Converter

Convert XLSB to OTB online quickly and easily. Just upload your file, convert it, and download the OTB in seconds.

Limit Reached

Download All

Convert all to

Select Files

Drag and drop files here. Sign Up for more features.

XLSB is Excel's binary workbook format: the same content as XLSX, but stored in a binary form that opens and saves faster for very large files.

OTB, Over-The-Air Bitmap, is the tiny black-and-white image format of old Nokia phones, used for operator logos and picture messages.

Upload your XLSB file
Drag and drop your XLSB file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
Choose OTB as output format
The converter is preset to OTB, but you can select any other output format before converting.
Adjust settings (optional)
If you like, tweak output options such as resolution, quality, or compression before converting.
Convert the file
Click the 'Convert' button. The conversion takes only a few seconds.
Download your converted file
Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.