# Using Qopen with multiple event files
**URL:** https://discourse.obspy.org/t/using-qopen-with-multiple-event-files/1360
**Category:** Related: Qopen
**Created:** [February 8, 2022, 6:32pm UTC](https://discourse.obspy.org/t/using-qopen-with-multiple-event-files/1360 "2022-02-08T18:32:44Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ccastelblanco](https://discourse.obspy.org/u/ccastelblanco)
#### Post date: [February 8, 2022, 6:32pm UTC](https://discourse.obspy.org/t/using-qopen-with-multiple-event-files/1360/1 "2022-02-08T18:32:44Z")
Hello,
I have multiple event QuakeML files, each one for an individual seismic event. I am trying to set the “conf.json” file in order to use those events in Qopen, but I realize that the configuration file is set to put as input only one file that contains the events. I am wondering if it is possible to put multiple event files as input in Qopen or if there is a way to merge all those files in only one.
Thank you for your valuable help.
Carlos.
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### Author:  [@trichter](https://discourse.obspy.org/u/trichter)
#### Post date: [February 9, 2022, 11:01am UTC](https://discourse.obspy.org/t/using-qopen-with-multiple-event-files/1360/2 "2022-02-09T11:01:47Z")
Hi Carlos,
did you try to use a glob expression, .e.g. `"*.xml"`? It could be that this only works for a development install of ObsPy.
Merging these files can be done with an external tool, e.g. ObsPy itself.
Best
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### Author:  [@ccastelblanco](https://discourse.obspy.org/u/ccastelblanco)
#### Post date: [February 11, 2022, 2:02pm UTC](https://discourse.obspy.org/t/using-qopen-with-multiple-event-files/1360/3 "2022-02-11T14:02:34Z")
Thank you for your suggestions. I am not familiar with glob expressions but I will search about it and for ObsPy tools as well.
Kind regards,
Carlos