Click the "Select File" button above, and choose your BILL file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert BILL to another file type
To convert BILL projects to another format, you need WinQS or other Database software.
Convert a file to BILL
To convert other file formats to the "JetDB Project Database" file type, you need software like WinQS or a similar tool.
About BILL files
.BILL files are specialized quantity surveying project databases created by ACE Solutions WinQS. Internally, they rely on the standard Microsoft Jet Database Engine (JetDB) but use a proprietary extension to associate the file with the native software. Quantity surveyors utilize these files to compile estimates, material lists, and detailed project costs. Because this format is proprietary, sharing data with architects, contractors, or clients who do not own a WinQS license is highly problematic. The software requires an expensive subscription, and the .BILL format cannot be natively opened by web browsers, standard office suites, or generic document viewers. This forces users into a proprietary lock-in. To share the data, users typically need to convert or export the information into accessible formats like CSV for spreadsheet manipulation or PDF for read-only distribution. This file format is difficult to open or convert because the internal relational database schema mapping is uniquely designed for WinQS. Standard online converters fail to process it since they lack the specialized logic required to reconstruct the complex Bill of Quantities from the raw JetDB tables. Often, only the original software can properly read or export the structured data. However, convert.guru provides a pragmatic workaround. Just drag and drop your file to identify the format, view it, and convert it when possible. If our analysis detects the underlying JetDB structures, viewing raw text or exporting the embedded tables may still be achievable.
Convert.Guru analyzes your BILL file, detects the exact format, and lets you read the text inside.
If you want to convert BILL file to PDF, EMI, CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF or DAT, you can use WinQS or similar software from the "Quantity Surveying Project Database" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to BILL, try WinQS or another comparable tool in the "Quantity Surveying Project Database" category.
The BILL 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 BILL converter.