Boost.txt is a netlist, a common format of the Spice family of electronic circuit simulators.
LTSpice is one of these. You can download and use it free. It has frequent recommendations at this forum.
https://www.linear.com/designtools/software/
After you install LTSpice on your computer:
a) Click on Boost.txt (post #5) to download it.
b) Rename it to Boost.asc.
c) Examine its properties. Its icon should resemble a transistor symbol. The file may appear as an LTspice file, or, you may need to adjust its properties so it becomes an LTspice file. Make certain the file extension is visible and appears as 'asc'.
d) Load it into LTspice. It should appear onscreen as a schematic.
e) Choose menu command Simulate>>Run. (The 'running man' icon)
f) If the run is free of errors, then you can view scope traces. Select Visible Traces (Right-click on the schematic). This opens a scope window.
g) Right-click and select Visible Traces. Choose voltage, current, from the window. (Example, output voltage is V(n003).)
The above steps worked for me just now.