# Cannot open fileseries in ParaView 5.4.1

**URL:** https://discourse.paraview.org/t/cannot-open-fileseries-in-paraview-5-4-1/5493
**Category:** ParaView Support
**Created:** [October 5, 2020, 7:56am UTC](https://discourse.paraview.org/t/cannot-open-fileseries-in-paraview-5-4-1/5493 "2020-10-05T07:56:12Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Oier\_Arcelus](https://discourse.paraview.org/user_avatar/discourse.paraview.org/oier_arcelus/32/5080_2.png) [@Oier\_Arcelus](https://discourse.paraview.org/u/Oier_Arcelus)
#### Post date: [October 5, 2020, 7:56am UTC](https://discourse.paraview.org/t/cannot-open-fileseries-in-paraview-5-4-1/5493/1 "2020-10-05T07:56:12Z")

</div>

Dear All,

I have a fileseries for a lammps data file. When trying to open them I selected File/Open and I see my lammps .dum fileseries with ‘Type: Group’. I can select each individual dump file within this group. But If I just select the entire group, and try to load it by pressing OK, it will only load the first .dump file of the group and no more.

I have tried to individually load all files, but instead of creating a dump\* source which contains all the timesteps, it will create N different dumpN sources.