If you want to perform the same analysis on multiple small files and wish to accumulate the results, the quickest way would be to append them into a single LabChart file.
This can be achieved by opening the first file to be analyzed, then choosing File > append... and picking the following file you wish to add. Please continue the same way until you have opened as many files as you'd like to analyze.
Please be aware that creating huge data files will considerably slow the file's analysis time. This will also depend on your computer processing power, operating system, and any other programs that may be running.
For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.