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offfiltx.dll

Microsoft Office Open XML Format Filter file version info

Library on Windows 2 known copies with hashes

Is it the real offfiltx.dll?

file version info and known copies
Installed inC:\Program Files (x86)\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Filters\
C:\Program Files (x86)\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Filters\
Signed byMicrosoft Corporation
ProductMicrosoft Office, Microsoft Corporation
DescriptionMicrosoft Office Open XML Format Filter

2 known copies

16.0.12527.20470 · C:\Program Files (x86)\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Filters\offfiltx.dll · signed by Microsoft Corporation

66031aaa6bb08845d05e0ba019ac5c9283bd6cb9e7f54b1c4ff5d2f28459075d

16.0.12527.20458 · C:\Program Files (x86)\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Filters\offfiltx.dll · signed by Microsoft Corporation

57bebec656b5dbced2507fd8f6abd242500635b6803b21f56e4ff2e73e3dc4db

From the file’s version info and the copies recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look. In Ceplin, "<sha256>".whatis() says which known copy a hash is.