open ptg file?

[Antonio Olivares]

Dear Dfly Users,

How does one open a *.ptg file?
it contains the following:
=====

powerschool.base=http://pschool.rgccisd.org

powerschool.port=80


# Change in internationalized installations

version.key=Version:


## -- You should not normally need to change any values past this line


powerschool.url=${powerschool.base}:${powerschool.port}


powerschool.login=${powerschool.url}/admin/pw.html


## PowerTeacher Gradebook

pswebstart.app = ptg

pswebstart.url = ${powerschool.url}/powerschool-gradebook/

pswebstart.jnlp = ${pswebstart.url}launchGradeBook.jnlp


ptg.com.pearson.powerschool.userid=119827

ptg.com.pearson.powerschool.sessionid=101059198

ptg.com.pearson.powerschool.credentials=a81e160c9103e37051a086f7075dcd8c

ptg.com.pearson.powerschool.schoolnumber=214901003

ptg.com.pearson.powerschool.sdk.mode=httpinvoke

ptg.com.pearson.powerschool.httpinvoke.url=http://pschool.rgccisd.org:80/powerschool-sdkhttpinvoke

ptg.com.pearson.powerschool.httpinvoke.gzip=true

ptg.com.pearson.powerschool.server.starttime=not_recording

ptg.com.pearson.powerschool.server.timezone=America/Chicago

ptg.com.pearson.powerschool.webhelp.url=http://pschool.rgccisd.org:80/powerschool-webhelp/gradebook

ptg.com.pearson.powerschool.webhelp.baseurl=http://pschool.rgccisd.org:80

ptg.com.pearson.powerschool.adminid=

ptg.com.pearson.powerschool.teacherid=

ptg.com.pearson.powerschool.language=en

ptg.com.pearson.powerschool.country=US

ptg.com.pearson.powerschool.dateformat=MM/dd/yyyy

ptg.com.pearson.powerschool.numericFormat=#,##0.#########

ptg.com.pearson.powerschool.numericGroupSeparator=,

ptg.com.pearson.powerschool.numericDecimalSeparator=.

ptg.com.pearson.powerschool.timeFormat=hh:mm:ss a

ptg.com.pearson.powerschool.restapi.url=http://pschool.rgccisd.org

ptg.com.pearson.powerschool.restapi.port=80

=====

I have firefox-esr to open a *.jnlp file with icedtea-web plugin for
openjdk.   Since firefox freezes this machine I am using chromium
which does not support the plugins to display java web apps.  If I can
call a script to open the above ptg file or open a jnlp one from
command line, I will be in business.

Best Regards,


Antonio