diff --git a/app/sheet.c b/app/sheet.c
index f8e1ee84..d2d74ff6 100644
--- a/app/sheet.c
+++ b/app/sheet.c
@@ -87,7 +87,6 @@ struct zsvsheet_builtin_proc_state {
   struct zsvsheet_display_info display_info;
   char *find;
   struct zsv_prop_handler *custom_prop_handler;
-  const char *opts_used;
 };
 
 static void get_subcommand(const char *prompt, char *buff, size_t buffsize, int footer_row) {
@@ -338,8 +337,8 @@ static zsvsheet_status zsvsheet_move_hor_end(struct zsvsheet_display_info *di, b
 // zsvsheet_handle_find_next: return non-zero if a result was found
 char zsvsheet_handle_find_next(struct zsvsheet_ui_buffer *uib, const char *needle, struct zsvsheet_opts *zsvsheet_opts,
                                size_t header_span, struct zsvsheet_display_dimensions *ddims, int *update_buffer,
-                               struct zsv_prop_handler *custom_prop_handler, const char *opts_used) {
-  if (zsvsheet_find_next(uib, needle, zsvsheet_opts, header_span, custom_prop_handler, opts_used) > 0) {
+                               struct zsv_prop_handler *custom_prop_handler) {
+  if (zsvsheet_find_next(uib, needle, zsvsheet_opts, header_span, custom_prop_handler) > 0) {
     *update_buffer = zsvsheet_goto_input_raw_row(uib, zsvsheet_opts->found_rownum, header_span, ddims, (size_t)-1);
     return 1;
   }
@@ -370,7 +369,7 @@ static zsvsheet_status zsvsheet_find(struct zsvsheet_builtin_proc_state *state,
 
   if (state->find) {
     zsvsheet_handle_find_next(current_ui_buffer, state->find, &zsvsheet_opts, di->header_span, di->dimensions,
-                              &di->update_buffer, state->custom_prop_handler, state->opts_used);
+                              &di->update_buffer, state->custom_prop_handler);
   }
 
 out:
@@ -381,6 +380,7 @@ static zsvsheet_status zsvsheet_open_file_handler(struct zsvsheet_proc_context *
   // TODO: should be PATH_MAX but that's going to be about a page and compiler
   //       might complain about stack being too large. Probably move to handler
   //       state or something.
+  // TODO: allow additional zsv options
   char prompt_buffer[256] = {0};
   struct zsvsheet_builtin_proc_state *state = (struct zsvsheet_builtin_proc_state *)ctx->subcommand_context;
 
@@ -394,7 +394,8 @@ static zsvsheet_status zsvsheet_open_file_handler(struct zsvsheet_proc_context *
   if (*prompt_buffer == '\0')
     goto no_input;
 
-  if ((err = zsvsheet_ui_buffer_open_file(prompt_buffer, NULL, NULL, state->custom_prop_handler, state->opts_used,
+  const char *opts_used = NULL;
+  if ((err = zsvsheet_ui_buffer_open_file(prompt_buffer, NULL, NULL, state->custom_prop_handler, opts_used,
                                           di->ui_buffers.base, di->ui_buffers.current))) {
     if (err > 0)
       zsvsheet_priv_set_status(di->dimensions, 1, "%s: %s", prompt_buffer, strerror(err));
@@ -426,8 +427,7 @@ static zsvsheet_status zsvsheet_filter_handler(struct zsvsheet_proc_context *ctx
   const char *data_filename = zsvsheet_buffer_data_filename(current_ui_buffer);
   char is_filtered_file = !(data_filename == current_ui_buffer->filename);
   struct zsv_opts *zsv_opts = is_filtered_file ? NULL : &current_ui_buffer->zsv_opts;
-  const char *opts_used = is_filtered_file ? NULL : state->opts_used;
-  if ((err = zsvsheet_ui_buffer_open_file(data_filename, zsv_opts, prompt_buffer, state->custom_prop_handler, opts_used,
+  if ((err = zsvsheet_ui_buffer_open_file(data_filename, zsv_opts, prompt_buffer, state->custom_prop_handler, NULL,
                                           di->ui_buffers.base, di->ui_buffers.current))) {
     if (err > 0)
       zsvsheet_priv_set_status(di->dimensions, 1, "%s: %s", current_ui_buffer->filename, strerror(err));
@@ -439,13 +439,6 @@ static zsvsheet_status zsvsheet_filter_handler(struct zsvsheet_proc_context *ctx
   }
 
   struct zsvsheet_ui_buffer *new_ui_buffer = *state->display_info.ui_buffers.current;
-  /*
-  if (new_ui_buffer->dimensions.row_count < 2) {
-    zsvsheet_ui_buffer_pop(di->ui_buffers.base, di->ui_buffers.current, NULL);
-    zsvsheet_priv_set_status(di->dimensions, 1, "Not found: %s", prompt_buffer);
-    return zsvsheet_status_ignore;
-  }
-  */
   if (is_filtered_file) {
     free(new_ui_buffer->filename);
     new_ui_buffer->filename = strdup(current_ui_buffer->filename);
@@ -701,7 +694,6 @@ int ZSV_MAIN_FUNC(ZSV_COMMAND)(int argc, const char *argv[], struct zsv_opts *op
     .display_info.header_span = header_span,
     .find = NULL,
     .custom_prop_handler = custom_prop_handler,
-    .opts_used = opts_used,
   };
 
   zsvsheet_status status;
@@ -736,7 +728,7 @@ int ZSV_MAIN_FUNC(ZSV_COMMAND)(int argc, const char *argv[], struct zsv_opts *op
     if (handler_state.display_info.update_buffer && current_ui_buffer->filename) {
       struct zsvsheet_opts zsvsheet_opts = {0};
       if (read_data(&current_ui_buffer, NULL, current_ui_buffer->input_offset.row, current_ui_buffer->input_offset.col,
-                    header_span, &zsvsheet_opts, custom_prop_handler, opts_used)) {
+                    header_span, &zsvsheet_opts, custom_prop_handler)) {
         zsvsheet_priv_set_status(&display_dims, 1, "Unexpected error!"); // to do: better error message
         continue;
       }
diff --git a/app/sheet/file.c b/app/sheet/file.c
index 6f848ba8..ed527385 100644
--- a/app/sheet/file.c
+++ b/app/sheet/file.c
@@ -7,14 +7,13 @@ int zsvsheet_ui_buffer_open_file(const char *filename, const struct zsv_opts *zs
   uibopts.filename = filename;
   if (zsv_optsp)
     uibopts.zsv_opts = *zsv_optsp;
+  uibopts.opts_used = opts_used;
   uibopts.buff_opts = &bopts;
   struct zsvsheet_opts zsvsheet_opts = {0};
   int err = 0;
   struct zsvsheet_ui_buffer *tmp_ui_buffer = NULL;
   uibopts.row_filter = row_filter;
-  if (!opts_used)
-    opts_used = "";
-  if ((err = read_data(&tmp_ui_buffer, &uibopts, 0, 0, 0, &zsvsheet_opts, custom_prop_handler, opts_used)) != 0 ||
+  if ((err = read_data(&tmp_ui_buffer, &uibopts, 0, 0, 0, &zsvsheet_opts, custom_prop_handler)) != 0 ||
       !tmp_ui_buffer || !tmp_ui_buffer->buff_used_rows) {
     zsvsheet_ui_buffer_delete(tmp_ui_buffer);
     if (err)
diff --git a/app/sheet/index.c b/app/sheet/index.c
index bf86ca0d..feeb745d 100644
--- a/app/sheet/index.c
+++ b/app/sheet/index.c
@@ -90,7 +90,7 @@ enum zsv_index_status build_memory_index(struct zsvsheet_index_opts *optsp) {
     ix_zopts.row_handler = save_filtered_file_row_handler;
 
     enum zsv_status zst =
-      zsv_new_with_properties(&ix_zopts, optsp->custom_prop_handler, optsp->filename, optsp->opts_used, &ixr.parser);
+      zsv_new_with_properties(&ix_zopts, optsp->custom_prop_handler, optsp->filename, NULL, &ixr.parser);
     if (zst != zsv_status_ok)
       goto out;
 
@@ -113,7 +113,7 @@ enum zsv_index_status build_memory_index(struct zsvsheet_index_opts *optsp) {
   ix_zopts.row_handler = build_memory_index_row_handler;
 
   enum zsv_status zst =
-    zsv_new_with_properties(&ix_zopts, optsp->custom_prop_handler, optsp->filename, optsp->opts_used, &ixr.parser);
+    zsv_new_with_properties(&ix_zopts, optsp->custom_prop_handler, optsp->filename, NULL, &ixr.parser);
   if (zst != zsv_status_ok)
     goto out;
 
diff --git a/app/sheet/index.h b/app/sheet/index.h
index d68ee766..12b1eca9 100644
--- a/app/sheet/index.h
+++ b/app/sheet/index.h
@@ -32,7 +32,6 @@ struct zsvsheet_index_opts {
   struct zsvsheet_ui_buffer *uib;
   int *errp;
   struct zsv_prop_handler *custom_prop_handler;
-  const char *opts_used;
 };
 
 enum zsv_index_status build_memory_index(struct zsvsheet_index_opts *optsp);
diff --git a/app/sheet/read-data.c b/app/sheet/read-data.c
index b993ae44..a3b49b14 100644
--- a/app/sheet/read-data.c
+++ b/app/sheet/read-data.c
@@ -28,7 +28,8 @@ static void *get_data_index(void *d);
 
 static void get_data_index_async(struct zsvsheet_ui_buffer *uibuffp, const char *filename, struct zsv_opts *optsp,
                                  const char *row_filter, struct zsv_prop_handler *custom_prop_handler,
-                                 const char *opts_used, pthread_mutex_t *mutexp) {
+                                 // const char *opts_used,
+                                 pthread_mutex_t *mutexp) {
   struct zsvsheet_index_opts *ixopts = calloc(1, sizeof(*ixopts));
   ixopts->mutexp = mutexp;
   ixopts->filename = filename;
@@ -38,7 +39,7 @@ static void get_data_index_async(struct zsvsheet_ui_buffer *uibuffp, const char
   ixopts->index = &uibuffp->index;
   ixopts->index_ready = &uibuffp->index_ready;
   ixopts->custom_prop_handler = custom_prop_handler;
-  ixopts->opts_used = opts_used;
+  //  ixopts->opts_used = opts_used;
   ixopts->uib = uibuffp;
   ixopts->uib->ixopts = ixopts;
   pthread_t thread;
@@ -49,13 +50,16 @@ static void get_data_index_async(struct zsvsheet_ui_buffer *uibuffp, const char
 static int read_data(struct zsvsheet_ui_buffer **uibufferp,   // a new zsvsheet_ui_buffer will be allocated
                      struct zsvsheet_ui_buffer_opts *uibopts, // if *uibufferp == NULL and uibopts != NULL
                      size_t start_row, size_t start_col, size_t header_span, struct zsvsheet_opts *zsvsheet_opts,
-                     struct zsv_prop_handler *custom_prop_handler, const char *opts_used) {
+                     struct zsv_prop_handler *custom_prop_handler) {
   const char *filename = (uibufferp && *uibufferp) ? (*uibufferp)->filename : uibopts ? uibopts->filename : NULL;
   struct zsv_opts opts = {0};
+  const char *opts_used = "";
   if (uibufferp && *uibufferp)
     opts = (*uibufferp)->zsv_opts;
-  else if (uibopts)
+  else if (uibopts) {
     opts = uibopts->zsv_opts;
+    opts_used = uibopts->opts_used;
+  }
   struct zsvsheet_ui_buffer *uibuff = uibufferp ? *uibufferp : NULL;
   size_t remaining_rows_to_skip = start_row;
   size_t remaining_header_to_skip = header_span;
@@ -77,6 +81,7 @@ static int read_data(struct zsvsheet_ui_buffer **uibufferp,   // a new zsvsheet_
     zsv_delete(parser);
     return errno ? errno : -1;
   }
+  // opts_used is no longer needed since opts will be updated
 
   if (uibuff) {
     pthread_mutex_lock(&uibuff->mutex);
@@ -216,7 +221,7 @@ static int read_data(struct zsvsheet_ui_buffer **uibufferp,   // a new zsvsheet_
       uibuff->index_started = 1;
       if (original_row_num > 1 && (row_filter == NULL || rows_read > 0)) {
         opts.stream = NULL;
-        get_data_index_async(uibuff, filename, &opts, row_filter, custom_prop_handler, opts_used, &uibuff->mutex);
+        get_data_index_async(uibuff, filename, &opts, row_filter, custom_prop_handler, /* opts_used, */ &uibuff->mutex);
         asprintf(&ui_status, "(building index) ");
       }
     }
@@ -271,7 +276,7 @@ static void *get_data_index(void *gdi) {
 
 static size_t zsvsheet_find_next(struct zsvsheet_ui_buffer *uib, const char *needle,
                                  struct zsvsheet_opts *zsvsheet_opts, size_t header_span,
-                                 struct zsv_prop_handler *custom_prop_handler, const char *opts_used) {
+                                 struct zsv_prop_handler *custom_prop_handler) {
   struct zsvsheet_rowcol *input_offset = &uib->input_offset;
   struct zsvsheet_rowcol *buff_offset = &uib->buff_offset;
   size_t cursor_row = uib->cursor_row;
@@ -279,7 +284,7 @@ static size_t zsvsheet_find_next(struct zsvsheet_ui_buffer *uib, const char *nee
   zsvsheet_opts->found_rownum = 0;
   // TO DO: check if it exists in current row, later column (and change 'cursor_row - 1' below to 'cursor_row')
   read_data(&uib, NULL, input_offset->row + buff_offset->row + header_span + cursor_row - 1, 0, header_span,
-            zsvsheet_opts, custom_prop_handler, opts_used);
+            zsvsheet_opts, custom_prop_handler);
   zsvsheet_opts->find = NULL;
   return zsvsheet_opts->found_rownum;
 }
diff --git a/app/sheet/ui_buffer.c b/app/sheet/ui_buffer.c
index cb9f7d9c..f8e2c2c1 100644
--- a/app/sheet/ui_buffer.c
+++ b/app/sheet/ui_buffer.c
@@ -67,6 +67,7 @@ struct zsvsheet_ui_buffer_opts {
   const char *row_filter;
   const char *filename;
   struct zsv_opts zsv_opts; // options to use when opening this file
+  const char *opts_used;
   char no_rownum_col_offset;
 };
 
diff --git a/app/utils/prop.c b/app/utils/prop.c
index 1530300e..0361ba84 100644
--- a/app/utils/prop.c
+++ b/app/utils/prop.c
@@ -138,7 +138,8 @@ enum zsv_status zsv_properties_parser_destroy(struct zsv_properties_parser *pars
  * print a warning to stderr
  *
  * @param data_filepath            required file path
- * @param opts (optional)          parser options to load
+ * @param opts (optional)          parser options to load. will be updated to reflect
+ *                                 what is actually used
  * @param custom_prop_handler (optional) handler for custom properties
  * @param cmd_opts_used (optional) cmd option codes to skip + warn if found
  * @return zsv_status_ok on success