# Import large CDF files?

**URL:** <https://community.wolfram.com/t/import-large-cdf-files/13551>\
**Category:** Questions\
**Tags:** data-science, computable-document-format, import-and-export\
**Created:** [January 17, 2019, 4:40am UTC](https://community.wolfram.com/t/import-large-cdf-files/13551 "2019-01-17T04:40:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tjpraseu](https://avatars.discourse-cdn.com/v4/letter/t/97f17d/32.png) [@tjpraseu](https://community.wolfram.com/u/tjpraseu)\
**Post date:** [January 17, 2019, 4:40am UTC](https://community.wolfram.com/t/import-large-cdf-files/13551/1 "2019-01-17T04:40:34Z")

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I’m trying to consolidate 200 files, 32 MB each unzipped which is about 6.5 GB of highly compressed data into one .CDF file.

Would loading this in Mathematica be an issue?

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**Author:** ![shenghuiy](https://yyz1.discourse-cdn.com/wolfram/user_avatar/community.wolfram.com/shenghuiy/32/36073_2.png) [@shenghuiy](https://community.wolfram.com/u/shenghuiy)\
**Post date:** [January 17, 2019, 5:39am UTC](https://community.wolfram.com/t/import-large-cdf-files/13551/2 "2019-01-17T05:39:22Z")

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Maybe you want to consolidate them into one large hdf5 file and then import in a Mathematica session.

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<div class="post-metadata">

**Author:** ![tjpraseu](https://avatars.discourse-cdn.com/v4/letter/t/97f17d/32.png) [@tjpraseu](https://community.wolfram.com/u/tjpraseu)\
**Post date:** [January 19, 2019, 1:37am UTC](https://community.wolfram.com/t/import-large-cdf-files/13551/3 "2019-01-19T01:37:11Z")

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Hey Shenghui,

can you refer me to resources on how to do this? I’ve never heard of this before.

Thank you