Extract text from Backup files (BAC)
To convert BAC Backups to another format, you need Revenue Online Service or other Backup software.
To convert other file formats to the "Software Backup File" file type, you need software like Revenue Online Service or a similar tool.
The .BAC file extension primarily serves as a Revenue Certificate Backup. These files are created by the Irish Revenue Online Service (ROS) to securely store a taxpayer's digital login credentials. Beyond tax systems, the .BAC extension is heavily used as a generic backup format by various software. It frequently contains SQL database archives for Comarch CDN ERP or Siemens WinCC, automated scripts for COPA-DATA zenon Logic, or even game save backups for titles like Satisfactory and Batman Arkham City.
Opening or restoring a .BAC file typically requires the exact software that generated it. For Irish tax certificates, you must import the file directly through the ROS login portal. For database backups, administrators rely on Microsoft SQL Server.
Users often attempt to convert .BAC files because they want to read the contents in a standard format, but they face frustrating limits. These files are usually proprietary, encrypted, or compressed binary structures. A tax certificate requires a password and is heavily encrypted to prevent tampering. Standard online converters will fail to process it because it is not a traditional document or media file.
If you have a generic backup, the best approach is treating it as an archive. The most realistic target format is ZIP or GZ. If the software used standard compression under the hood, renaming or converting to ZIP might reveal the internal files. However, any software-specific formatting or encryption will remain unreadable.
Because this file format is difficult to open or convert, often only the original software can properly read or export the data. If our analysis detects a supported underlying or embedded format like standard ZIP compression, viewing or conversion may still be possible.
Convert.Guru analyzes your BAC file, detects the exact format, and lets you read the text inside.
Users also converted BAK, P12, ES3, PDF, BACKUP, DWG, XML, ZIP, CDW, JPG, PRN, TMDX and FLP files.
If you want to convert BAC file to PDF, BAK, BACKUP, OLD, TMP, TEMP, ARC, ZIP, TAR, GZ, 7Z or RAR, you can use Revenue Online Service or similar software from the "Data Backup Storage" category. In the File menu, look for Save As… or Export….
To convert SNAPSHOT, OLD, IMG, RESTORE, ISO, COPY, VMDK, TMP, VHD, BAK, ARCHIVE or BACKUP files to BAC, try Revenue Online Service or another comparable tool in the "Data Backup Storage" category.
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 BAC converter.