I have multiple raster data files, multiple files have a high value of 99999 while others may not. I would like to uniformly change all the raster data sets to a high value of 1 and low value of -1. Note: I do not have the spatial analysis tool.
That pretty well rules out any solutions unless you are somewhat python adept.
Also, I suspect that your 99999 value is a no data value, and you do not want to include that value in your scaling. You need to identify the true low and high before you can scale. And how do you want to scale? there are many different options.
Retrieving data ...