How to Remove Resource Obsolescence and Modify Unit and Building Requirements in EEII?

[Yelk]

Hi. Does anyone know how to remove the programmed obsolescence of resources in EEII? These resources include tin, iron, and saltpeter. Is it possible to modify the resource requirements for each unit or building in the game files?
I’m searching the files to modify them, but I can't find the right one. I'd like to test this feature.

[Dr.MonaLisa]

In Unofficial Patch 1.6, unit costs are usually in files inside:

EE2: zips\db_155.zip\db\TechTree
EE2 AOS: zips_ee2x\EE2X_db_155.zip\EE2X_db\TechTree

For Enabled UP1.6 units:
upgrade_unittype5.csv
dbtechtreenod5.csv

For Disabled UP1.6 units:
upgrade_unittype6.csv
dbtechtreenod6.csv

Please use WinRar and Notepad++ to edit files. Never ever use Microsoft Excel as it will damage them.

After every UP1.6 update these files will be overwritten, so make a document with the changes you made, and apply them manually after every update. Do not overwrite the .zip files with your copy after the update, because your game will be crashing, or in best case you'll just lose improvements from the newest version.