Use this converter if you're using Gomule from github.com/pairofdocs/gomule-d2r
Drag and drop your .d2x Atma stash file to convert it to a .d2i D2R stash.
https://pairofdocs.github.io/atma-stash-d2r/
Drag and drop your Plugy .sss shared stash file to convert it to a .d2i D2R stash.
Use this converter if you're using the official Gomule from sourceforge.net/projects/gomule
Conversion between Atma version 96 stashes (LoD) and Atma version 97 stashes (D2R) is available here atma-stash-d2r/convert96to97.html
NOTE: the converter fails on stashes that have 2000+ items. Split your stash to smaller parts if it has 2000k+ items. See posts about it here pairofdocs/gomule-d2r#5, here https://www.reddit.com/r/Diablo/comments/nim6m0/gomule_for_d2r_early_version/heacek7/?utm_source=share&utm_medium=web2x&context=3 and here #2 (comment)
All credit goes to Riv for his D2 <--> D2R converter.
Code was used from https://github.com/d07RiV/d07riv.github.io
Credits to mgamperl for .sss shared stash reading code https://github.com/dschu012/d2s/pull/15/files
Table from https://squeek502.github.io/d2itemreader/formats/atma.html
ATMA is the file format used by the ATMA and GoMule muling tools.
| Byte Offset | Size (bytes) | Description |
|---|---|---|
| 0x00 | 3 | File header. Must be "D2X". |
| 0x03 | 2 | Number of items in the file as a 16 bit unsigned integer. |
| 0x05 | 2 | File version as a 16 bit unsigned integer. Must be 96. |
| 0x07 | 4 | ATMA checksum. See here for how this is calculated. |
| 0x0B | ... | Beginning of D2 Item List data without the 'header' and 'number of items' fields. Instead, use the value at offset 0x03 of the ATMA data as the number of 'root' items in the list, and then read the item list as if you're starting at offset 0x04 of the item list data. |
See https://squeek502.github.io/d2itemreader/formats/plugy.html