# Errors when trying to open an H5 file **URL:** \ **Category:** Hdf-forum archives\ **Created:** [April 9, 2017, 6:41pm UTC](https://forum.hdfgroup.org/t/errors-when-trying-to-open-an-h5-file/3990 "2017-04-09T18:41:32Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Stmchasr](https://forum.hdfgroup.org/letter_avatar_proxy/v4/letter/s/f07891/32.png) [@Stmchasr](https://forum.hdfgroup.org/u/Stmchasr)\ **Post date:** [April 9, 2017, 6:41pm UTC](https://forum.hdfgroup.org/t/errors-when-trying-to-open-an-h5-file/3990/1 "2017-04-09T18:41:32Z")
I am a novice with .H5 files, but I have pulled out a few files from my system at work and am trying to view them. First I tried in ArcGIS since the format is now supported, but I received a very vague error that the raster was invalid. Now I downloaded HDFView and I am getting this error: I've attached one of the files I am trying to view/open so someone with more experience can take a look and hopefully enlighten me with what is wrong. Thanks in advance! ![](https://hdf-discourse-1.s3.amazonaws.com/original/1X/2910184152db61b553ddadd3a9925396f774d5a3.png) [20170327\_TWL.h5](https://hdf-discourse-1.s3.amazonaws.com/original/1X/93aaaa65aac3cb6906c8def28450dd37a66c64ea.h5) (123 KB) ---
**Author:** ![gnwiii](https://forum.hdfgroup.org/letter_avatar_proxy/v4/letter/g/e5b9ba/32.png) [@gnwiii](https://forum.hdfgroup.org/u/gnwiii)\ **Post date:** [April 10, 2017, 4:21pm UTC](https://forum.hdfgroup.org/t/errors-when-trying-to-open-an-h5-file/3990/2 "2017-04-10T16:21:00Z")
I see the same error (macOS El Capitan, HDFview 2.13) when I click on a Data object. Panoply gives "There was an error preparing the data: Unknown filter type=32000". See: [https://support.hdfgroup.org/services/filters.html](https://support.hdfgroup.org/services/filters.html), where you will see: ![](https://hdf-discourse-1.s3.amazonaws.com/original/1X/2910184152db61b553ddadd3a9925396f774d5a3.png) > **···** > > On 9 April 2017 at 15:41, \ wrote: > > > I am a novice with .H5 files, but I have pulled out a few files from my > > system at work and am trying to view them. First I tried in ArcGIS since > > the format is now supported, but I received a very vague error that the > > raster was invalid. Now I downloaded HDFView and I am getting this error: > > > > I've attached one of the files I am trying to view/open so someone with > > more experience can take a look and hopefully enlighten me with what is > > wrong. > > ----------------------------------------------------------------------------------------------------------------------------------------------------- > LZF Filter > > \*Filter ID:\* 32000 > > \*Filter Description:\* > > The LZF filter is an alternative DEFLATE-style compressor for HDF5 > datasets, using the free LZF library by Marc Alexander Lehmann. Its main > benefit over the built-in HDF5 DEFLATE filter is speed; in memory-to-memory > operation as part of the filter pipeline, it typically compresses 3x-5x > faster than DEFLATE, and decompresses 2x faster, while maintaining 50% to > 90% of the DEFLATE compression ratio. > > LZF can be used to compress any data type, and requires no compile-time or > run-time configuration. HDF5 versions 1.6.5 through 1.8.3 are supported. > The filter is written in C and can be included directly in C or C++ > applications; it has no external dependencies. The license is 3-clause BSD > (virtually unrestricted, including commercial applications). > > More information, downloads, and benchmarks, are available at the > [http://h5py.org/lzf/\](http://h5py.org/lzf/%5C). > > \*Additional Information:\* > > The LZF filter was developed as part of the h5py project, which implements > a general-purpose interface to HDF5 from Python. > > \*Links:\* > > The h5py homepage: [http://h5py.org](http://h5py.org) > The LZF library homepage: [Marc Lehmann's "LibLZF"](http://home.schmorp.de/marc/liblzf.html) > > \*Contact Information:\* > > Andrew Collette > Web: [http://h5py.org](http://h5py.org) > > ------------------------------------------------------------------------------------------------------------------------------------------------------ > > Since ArcGIS uses python, you might be able to install the lzf filter where > ArcGIS can use it. > > You may want to read > [https://support.hdfgroup.org/HDF5/doc/TechNotes/TechNote-HDF5-CompressionTroubleshooting.pdf](https://support.hdfgroup.org/HDF5/doc/TechNotes/TechNote-HDF5-CompressionTroubleshooting.pdf) > > > Thanks in advance! > > > > \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ > > Hdf-forum is for HDF software users discussion. > > Hdf-forum@lists.hdfgroup.org > > [http://lists.hdfgroup.org/mailman/listinfo/hdf-forum\_lists.hdfgroup.org](http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org) > > Twitter: [x.com](https://twitter.com/hdf5) > > -- > George N. White III \ > Head of St. Margarets Bay, Nova Scotia ---
**Author:** ![rosborn](https://forum.hdfgroup.org/user_avatar/forum.hdfgroup.org/rosborn/32/118_2.png) [@rosborn](https://forum.hdfgroup.org/u/rosborn)\ **Post date:** [April 10, 2017, 3:03pm UTC](https://forum.hdfgroup.org/t/errors-when-trying-to-open-an-h5-file/3990/3 "2017-04-10T15:03:09Z")
It opens in h5py without any problem, and I was able to plot the data in NeXpy. Could it be a permissions issue? Ray Osborn > **···** > > On Apr 9, 2017, at 1:41 PM, [stmchasr@verizon.net](mailto:stmchasr@verizon.net)\<[mailto:stmchasr@verizon.net](mailto:stmchasr@verizon.net)\> wrote: > > I am a novice with .H5 files, but I have pulled out a few files from my system at work and am trying to view them. First I tried in ArcGIS since the format is now supported, but I received a very vague error that the raster was invalid. Now I downloaded HDFView and I am getting this error: > > \ > > I've attached one of the files I am trying to view/open so someone with more experience can take a look and hopefully enlighten me with what is wrong. > > Thanks in advance! > \<20170327\_TWL.h5\>\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ > Hdf-forum is for HDF software users discussion. > [Hdf-forum@lists.hdfgroup.org](mailto:Hdf-forum@lists.hdfgroup.org)\<[mailto:Hdf-forum@lists.hdfgroup.org](mailto:Hdf-forum@lists.hdfgroup.org)\> > [http://lists.hdfgroup.org/mailman/listinfo/hdf-forum\_lists.hdfgroup.org](http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org) > Twitter: [https://twitter.com/hdf5](https://twitter.com/hdf5) > > -- > Ray Osborn, Senior Scientist > Materials Science Division > Argonne National Laboratory > Argonne, IL 60439, USA > Phone: +1 (630) 252-9011 > Email: [ROsborn@anl.gov](mailto:ROsborn@anl.gov)\<[mailto:ROsborn@anl.gov](mailto:ROsborn@anl.gov)\> ---
**Author:** ![bljones](https://forum.hdfgroup.org/letter_avatar_proxy/v4/letter/b/e5b9ba/32.png) [@bljones](https://forum.hdfgroup.org/u/bljones)\ **Post date:** [April 17, 2017, 2:48pm UTC](https://forum.hdfgroup.org/t/errors-when-trying-to-open-an-h5-file/3990/4 "2017-04-17T14:48:42Z")
Hello! HDF5 provides the capability to employ dynamically loaded filters. See:                 [Dynamic Plugins in HDF5](https://support.hdfgroup.org/HDF5/doc/Advanced/DynamicallyLoadedFilters/) We test many of the filter plugins internally. We will try the LZF filter plugin and plan to add it to our testing. I entered bug HDFFV-10174 for the issue. -Barbara help@hdfgroup.org ![](https://hdf-discourse-1.s3.amazonaws.com/original/1X/2910184152db61b553ddadd3a9925396f774d5a3.png) > **···** > > From: Hdf-forum [mailto:hdf-forum-bounces@lists.hdfgroup.org] On Behalf Of stmchasr@verizon.net > Sent: Sunday, April 09, 2017 1:42 PM > To: hdf-forum@lists.hdfgroup.org > Subject: [Hdf-forum] Errors when trying to open an H5 file > > I am a novice with .H5 files, but I have pulled out a few files from my system at work and am trying to view them. First I tried in ArcGIS since the format is now supported, but I received a very vague error that the raster was invalid. Now I downloaded HDFView and I am getting this error: > > [cid:image001.png@01D2B75A.56D03130] > > I've attached one of the files I am trying to view/open so someone with more experience can take a look and hopefully enlighten me with what is wrong. > > Thanks in advance!