Step 1: Download TexTools

• Official website: textools.net
• Download the latest version as a ZIP archive
• Extract it to a location of your choice, e.g. ~/tools/textools

Step 2: Prepare the Wine prefix

WINEPREFIX=~/.wine-textools WINEARCH=win64 winecfg

Install .NET Framework 4.8 with Winetricks:

WINEPREFIX=~/.wine-textools winetricks dotnet48

Step 3: Launch TexTools

WINEPREFIX=~/.wine-textools wine ~/tools/textools/FFXIV_TexTools.exe

Your Linux home directory is accessible under Z:\:

# Example for Steam:
Z:\home\YOURNAME\.steam\steam\steamapps\common\FINAL FANTASY XIV Online

Step 4: Create a backup

1. Go to Help → Backup Index Files
2. Choose a safe location for the backup
3. Wait for the process to complete

Step 5: Install a mod

1. Go to Mods → Import ModPack
2. Select the .ttmp2 file
3. Review the list of files that will be changed
4. Click Import

Reverting mods

1. Go to Mods → Revert All Mods
2. Alternatively: Help → Restore Index Files (uses your backup)

Using Proton instead of a separate Wine

# Steam App ID for FF14: 39210
~/.steam/steam/steamapps/compatdata/39210/pfx/

WINEPREFIX=~/.steam/steam/steamapps/compatdata/39210/pfx \
  wine ~/tools/textools/FFXIV_TexTools.exe