Regarding voltage, I need to know whether you have 120 Vac, 220 Vac, or some DC voltage you plan to use. I’ll assume you will be using 120 Vac.
The LED light strips you intend to use require a voltage between 18 and 22 volts and between 350mA and 700mA. The XLG-50-A you mention outputs 22V to 54V at 1.0 amps, so the only way you could use it for driving three LED strips would be in parallel. As such, there is a chance that the strips might vary a bit in brightness because they could draw different current levels when connected in parallel. In this configuration each would draw roughly 333mA, so they would only be about half as bright as their maximum potential level.
If you used four strips and connected two sets of two in series, each series string would take about 500mA, which would be a fair amount brighter. The risk in doing this is that if one of the two series strips were to fail or if one of them were disconnected, then the full 1A would run through the other series of strips, which would cause them to burn out from excessive current.
The XLG-25-A is rated for the same voltage but at 700mA rather than 1.0A. So with this driver, you could not drive 3 strips with reasonable brightness in parallel, but you could drive two in series at full rated current of 700mA. You would have to use two drivers to drive four LED strips this way. As this setup would drive the strips at their maximum rated level of 700mA, I would pay extra attention to ventilation conditions. If they do not have good airflow, there is a greater likelihood of over heating when driven at max level, and at a minimum, their life could be reduced.
Other options for driving 3 strips or 4 strips in series would be in this link. They will output a voltage both low enough and high enough to drive either 3 or 4 strips at 700mA.