AC_ Converter

Extract text from CaseWare audit files (AC_)


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

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

Convert AC_ to another file type

To convert AC_ audit files to another format, you need CaseWare Working Papers or other Data software.

Convert a file to AC_

To convert other file formats to the "Audit Engagement File" file type, you need software like CaseWare Working Papers or a similar tool.


About AC_ files

The .AC_ file extension is primarily used for Audit Engagement files created by CaseWare Working Papers. This file stores complex financial data, trial balances, and audit documentation in a structured format based on the Microsoft Compound File Binary format. Opening and editing an .AC_ file natively requires an active, often expensive subscription to CaseWare software. This poses a major disadvantage for users who need to share financial data with external stakeholders who do not use the proprietary CaseWare ecosystem. The closed, proprietary nature of the format means standard web browsers or generic spreadsheet software cannot parse the internal data streams correctly. To make the data accessible, users typically need to convert the .AC_ file or export its contents to standard formats like XLSX, CSV, or PDF. However, standard online converters fail to process it because the proprietary structure locks the data inside. Often, only the original software can properly read or export the data. Despite these limitations, convert.guru acts as a realistic workaround. Just drag and drop your file to identify the format, view it, and convert it when possible. Our platform can inspect the internal Microsoft Compound structure, extract embedded text, and show internal content. If our analysis detects a supported underlying format, viewing or data extraction may still be possible without needing the original software.

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

Users also converted AC, CWE, GSA and RVF files.


FAQ

If you want to convert AC_ file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use CaseWare Working Papers or similar software from the "Audit Engagement Data 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 AC_, try CaseWare Working Papers or another comparable tool in the "Audit Engagement Data Storage" category.



The AC_ 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 AC_ converter.