Converting the format of particle size data. There are 2 types of particle size data: table and list. For table format: the first column of input is datetime; the other column is the number concentration of each particle size channel, column name is the middle particle size of the particle size channel. For list format: the first column of input is datetime. The second column of input is for middle ranges of channels. The third column of input is for particle number concentration of each channel at each timepoint.