AC_ Converter

Extract text from CaseWare audit files (AC_)

Select File
Drop or upload your .AC_ file

Online File Converter

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How to extract text from your AC_ file

Click the "Select File" button above, and choose your AC_ file.
You’ll see a preview, if available.
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 "Financial Audit Archive" file type, you need software like CaseWare Working Papers or a similar tool.

About AC_ files

The .ac_ file is a compressed client engagement file created by CaseWare Working Papers, the industry-standard software for auditing and financial reporting. Think of it as a specialized 'ZIP' file that contains the entire audit database - including DBF (database) and CDX (index) files - packed into a single, portable container for email or backup.

Users typically encounter this file when an accountant sends a full engagement copy instead of a final report. The core problem is that .ac_ files are proprietary Microsoft Compound (OLE) containers; they cannot be opened by Excel, Adobe Reader, or standard unzipping tools. You cannot 'convert' this file directly online because it requires the CaseWare engine to decompress and interpret the underlying relational database structure.

Best Conversion Targets:

To PDF: The standard for archiving audit evidence and final financial statements.
To XLSX: Essential for extracting trial balances, lead schedules, and adjusting entries for further analysis.
To XBRL: For regulatory compliance and digital financial reporting.

Pragmatic Advice: If you do not have a CaseWare license, you must ask the sender to use the 'Save as PDF' or 'Export to Excel' feature within their software before sending the file to you.

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 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 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.