The suffix QBW is used by the financial accounting software Quickbooks. A QBW file is a compiled, aggregated file of all financial information about a business. It contains the financial data, templates and logos up to the letters and pictures. In addition, files from other Quickbooks products may be included. Qbw files can also be backed up with a password.
qwb files can be saved as qbb or qbm files. It should be noted that qbm only secures the financial data. When you start a backup, Quickbooks also creates a qbw.Tlg file that logs all transactions since the last backup to prevent data loss.
Because QWB or QBB is a proprietary format, such files can only be opened by Quickbooks itself.