Why Borgbackup files in repository are bigger than original file

[Saahib]

HI,

I just started using borg and something weird I notice. Borg Backup is really nice with all its things but one of the recent backup I see that size of repository is way larger than actual files in it.

I have two files on is 66GB and other is 3.5GB, I uploaded them in a repo of BORG, here is its stats:

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Original size      Compressed size    Deduplicated size
All archives:              144.23 GB             74.51 GB             31.86 GB

                       Unique chunks         Total chunks
Chunk index:                   21015                47457So what is is , even after compression, its 74GB and there is deduplication data too.

Anyone has got any idea what I am seeing here ?