Files with blockmap extension can be found within Windows app installer packages. Contains list of app files, indexes and cryptographic hashes for each block of data.

Detailed description

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BLOCKMAP file extension - App package block map

What is blockmap file? How to open blockmap files?

File type specification:

Configuration file type icon Configuration file type

File extension blockmap is best known for one of te XML files that can be found in Windows installer app packages.

According to Microsoft, the package block map file is an XML document that contains a list of the app’s files along with indexes and cryptographic hashes for each block of data that is stored in the package.

Updated: December 1, 2023

Help how to open:

Can be edited using any text editor (it's XML file), but meant to be used inside app packages.

How to convert:

It is unlikely any useful conversion exists.

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