Compound File Binary Format, a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It is used by Windows Installer and for documents in older versions of Microsoft Office. [44] It can be used by other programs as well that rely on the COM and OLE API's. (0xD0CF11E0 visually resembles "DOCFILE". [45]) — file signature D0 CF 11 E0 A1 B1 1A E1 at offset 0

For Compound File Binary Format, a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It is used by Windows Installer and for documents in older versions of Microsoft Office. [44] It can be used by other programs as well that rely on the COM and OLE API's. (0xD0CF11E0 visually resembles "DOCFILE". [45]), hex signature is D0 CF 11 E0 A1 B1 1A E1; extension is doc xls ppt msi msg, verified against its source on 2026-09-22.

What the source says

D0 CF 11 E0 A1 B1 1A E1 | ÐÏ␑ࡱ␚á | 0 | doc xls ppt msi msg | Compound File Binary Format, a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It is used by Windows Installer and for documents in older versions of Microsoft Office. [44] It can be used by other programs as well that rely on the COM and OLE API's. (0xD0CF11E0 visually resembles "DOCFILE". [45]) |

— en.wikipedia.org, retrieved 2026-09-22

Source

• en.wikipedia.orghttps://en.wikipedia.org/wiki/List_of_file_signatures

Last verified against source: 2026-09-22. Due for re-check by 2027-09-22. This page as Markdown · OKF bundle · full dataset as JSON.