Convert compressed trend history files to uncompressed binary trend history files

Use the ZipFunctions executable to convert compressed trend history files back into uncompressed binary format.

AVEVA Edge saves compressed trend history files as HSZ files (<filename>.hsz). Use this procedure to convert these HSZ files back to the uncompressed trend history binary format (HST, <filename>.hst):

1. Copy ZipFunctions.exe from the Bin sub-folder of the AVEVA Edge program folder (typically C:\Program Files (x86)\AVEVA\AVEVA Edge 2026\Bin) to the folder containing the HSZ file (stored in the <project name> folder by default).

2. Open a Windows Command Prompt and navigate to the directory containing ZipFunctions.exe and the HSZ file(s).

3. At the command prompt, type the command:

   ZipFunctions -Z:E -T:N -S:<filename>.hsz -R:<filename>.hst

   • <filename>.hsz and <filename>.hst are the names of the source compressed trend history file and the new uncompressed binary trend history file, respectively.

   • For example:

     ZipFunctions -Z:E -T:N -S:01100313.HSZ -R:01100313.hst

4. Repeat the previous step for each compressed file you want to convert. When finished, type exit to close the command prompt.

   Note: You cannot create a math script for the ZipFunctions.exe program and use it in a Math worksheet in order to convert text files into binary format, as you can for the HST2TXT.exe program. The math script shortcut is available for binary files only.

If you want to convert the binary file to a text file, see Converting Trend History Files from Binary to Text.